- test-drb@ccmp.vtda.org - classiccmp.org

by info＠cvmakerspace.ca

Hi, everyone: In addition to the classic computers I play with, I also have a collection of 1930 vintage radio equipment catalogs and magazines collecting dust on my bookshelf. Is there a similar mailing list for vintage radio guys? These books I have need a new home .... Cheers, Brian -- Brian McIntosh Columbia Valley Maker Space Communications Guy info at cvmakerspace.ca 250 270 0689

7 years, 2 months

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Want/Available list

by guykd＠optusnet.com.au

At 09:03 PM 20/12/2018 +0100, Carlo Pisani wrote: >ok, I give up. >a forum with a bazaar should be more appropriate >frankly this mail list looks like spam, and it's going irritating >since it's difficult to follow and to handle True. I don't have time to read all messages either. Haven't yet looked into the archive, and if it's searchable. >but I am really tired to repeat myself about the >http://www.downthebunker.xyz/ project > >probably in 2019 we will definitively close it to new members, and that's all. This site looks interesting. But after looking for basic expected things like 'make new account', login, etc and not finding them, I tried "New Red Pill?" and discover it's about making an account. And it's closed. Are you complaining about lack of participation in the site? While not accepting new members? Where have you announced it? I'll post about it on eevblog forum (46000 members worldwide) if you will open membership first. Also I'd suggest not being so obscure with titles and headings. Sure they are cute, but it doesn't help newcomers understand how the site works. Especially if English is not their first language. I too want a web forum venue for hunting, acquiring and dispersing vintage computing gear, with a restoration/collector slant, ie not about the money, ie I'm poor, ha ha. A mailing list is NOT an appropriate context. It has no categories, is ephemeral, chews local storage, has no hot-linking, and demands more real-time attention than I can spare. eevblog gets close, but misses the mark: http://www.eevblog.com/forum/buysellwanted/ Not focussed on vintage computing, no subcategories. http://www.eevblog.com/forum/vintage-computing/ Not focussed on buy/sell/swap/give. Guy >Il giorno gio 20 dic 2018 alle ore 20:05 Electronics Plus via cctalk ><cctalk at classiccmp.org> ha scritto: >> >> Interesting thought! >> I don't send newsletters, or bother people in any way. I hate getting spam. >> I encourage people to use the RSS feeds https://elecshopper.com/rss/ >> If you like, you can change the spreadsheet to say "Items Wanted" instead of "HP Items Wanted" and change the column headers accordingly. >> Whatever you guys are looking for, I am willing to try and hunt. >> I belong to 2 subscription broadcast services for dealers, and I regularly email almost 500 recyclers for stuff. >> Just let me know. >> >> Cindy >> >> -----Original Message----- >> From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Grant Taylor via cctalk >> Sent: Thursday, December 20, 2018 12:48 PM >> To: cctalk at classiccmp.org >> Subject: Re: Want/Available list (was Re: Old HP stuff) >> >> On 12/20/2018 10:25 AM, Electronics Plus via cctalk wrote: >> > Fill it out as you think of stuff, and I will share it with the dealers. >> >> I may be odd, but I'd be interested in Cindy / Electronics Plus >> leveraging their existing mailing list. >> >> Assuming that it's Mailman (I don't remember) I'd be curious to see >> categories that are brand names, and possibly sub-categories that are >> model lines. >> >> That way people could subscribe to the list and pick the categories they >> are interested in receiving announcements to. >> >> I think it would also give Cindy / Electronics Plus some indication of >> what brand / model like people are interested in. >> >> Just a thought. ??\_(???)_/?? >> >> >> >> -- >> Grant. . . . >> unix || die >> >> >> --- >> This email has been checked for viruses by Avast antivirus software. >> https://www.avast.com/antivirus >> >

7 years, 2 months

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Origin of 'Straight 8' name

by commodorejohn＠gmail.com

I'd definitely be interested to hear if the DECheads on this list know the specifics, but I'd gathered that it came about once other models were introduced and the need arose to differentiate between, say, a PDP-8/e and a "straight" (i.e. vanilla) PDP-8. The car connection probably made the particular phrasing happen (of course, they originally photographed it in a Volkswagen, but they couldn't very well have started calling it a "flat-4!")

7 years, 2 months

3
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Origin of 'Straight 8' name

by jnc＠mercury.lcs.mit.edu

Does anyone know where the 'Straight 8' name for the first PDP-8 model came from? Obviously, it's probably a play on the car engine configuration name, but how did the connection get made? Thanks - I hope! Noel

7 years, 2 months

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Original PDP-11/10 [was: Re: Origin of 'Straight 8' name]

by jnc＠mercury.lcs.mit.edu

> From: Bill Degnan > It's pretty well researched at this point to be true to state that the > first two PDP 11 models were the 11/10 and 11/20. It just takes a while > for this to work its way through academia. Some places got the message a while ago: http://gunkies.org/w/index.php?title=PDP-11&diff=11528&oldid=11525 Note the date. I was reading the 1970 "pdp11 handbook" (note the title - all the pictures show machines labelled "pdp11") and read about it there. > From: Paul Koning > I'm curious about that 1 kW read-only memory. What technology is that > memory? At that size and that date I suspect core rope, but that would > be pretty expensive (due to the labor involved). I think that's what it must be. It's the MR11-A, about which I can find very little - it's in the 1970 "pdp11 handbook", p. 46, but I can't find anything else. It says there "2-piece core with wire braid, 256 wires, 64 cores". Reading between the lines, it sounds like the customer could 'configure' the contents (perhaps using the "2-piece core), DEC didn't do it. If anyone knows anything about this memory, that would be really good. Noel

7 years, 2 months

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Origin of 'Straight 8' name

by jfehlinger＠comcast.net

On 12/21/18 2:51 PM, Jim Carpenter via cctalk wrote: > The PDP8-LOVERS mailing list predates alt.sys.pdp8 by a couple years. I > just checked the archives and the earliest usage of 'straight-8' is from > Charles Lasner in an e-mail introducing himself to the still new mailing > list on August 10th, 1990. . . > > A quick check shows that it was common for cjl to use the term 'straight-8'. . . Well, in the original edition of Ted Nelson's _Computer Lib_ (copyright 1974), on p. 47 (under the heading "Those Adorable Infuriating R.E.S.I.S.T.O.R.S."), there's a photo with the caption: "Steve at the old straight 8."

7 years, 2 months

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Origin of 'Straight 8' name

by jnc＠mercury.lcs.mit.edu

>> people recently picked that to disambiguate them from all the other >> -8's. So my assumption (that it was recent) seems to be incorrect; I heard that it was in use in the 60's to differentiate it (e.g. for knowing what spares to take). Alas, with the origin that far back in time, we'll probably never find out what the connection was. > From: Bill Degnan > The original PDP 11 was sold in two model options, although the numbers > did not appear on the faceplace, very clearly the model options were > called PDP 11/10 and PDP 11/20. ... The fact that the name does not > appear on the front panel has caused every DEC historian to miss this > factoid. Yeah, it tripped me to. Although after I sent that email, I went back and looked, and it's called '-11/20' on all the documents I can find, including the prints. I'll check in the DEC archives (available on BitSavers), but I suspect the "PDP-11" on the front panel was the result of something getting dropped in the process of doing the panel, not the reasult of a name change by DEC. Noel

7 years, 2 months

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Which DEC machine made use of th pre Flip-Chip board?

by mattislind＠gmail.com

There is an auction for some kind of early DEC module. It appears to be a bit slice of MB, AR and MQ. There is also a signature by Gordon Bell on the board. But I cannot figure out which early machine it comes from. https://www.ebay.com/itm/Vintage-DEC-6205-Arithmetic-Registers-Circuit-Boar… The same seller has several other pre Flip-Chip modules like 4706 Teletype Receiver. If I read correctly the transistors are dated 1963-1964. https://www.ebay.com/itm/Vintage-DEC-4706C-8-Bit-Teletype-Receiver-Circuit-…

7 years, 2 months

5
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Which DEC machine made use of th pre Flip-Chip board?

by jnc＠mercury.lcs.mit.edu

> through (I think) the PDP-7; at least, this PDP-7 internals image > .. seems to show System Modules at the top, and FLIP CHIPs at the > bottom. After groveling through the 'PDP-7 Maintainence Manual' (F-77A), this seems to be accurate. In "Module Identification" (pg. 6-5), it refers to both types; the example on the next page uses a 4303, a 4000-Series System Module. What's interesting is the physical layout; all System Modules at the top of that image, and FLIP CHIPs at the bottom. No doubt this is partially for mechanical reasons (the two used different backplanes), but I wonder about the division into sub-systems; were the two types interspersed among each other in individual sub-systems (rewquiring running wires from the top to the bottom), or were sub-systems exclusively one or the other (so that the top of the bay is one sub-system, and the bottom another)? No doubt I could answer this by studying the prints, but time is short; perhaps someone who worked on the one at the LCM and already knows the answer can enlighten us! Noel

7 years, 2 months

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Sun hdd available

by sales＠elecplus.com

Maybe of interest, maybe too new? WTS SUN ULTRA 25 / 45 SATA H, REF, qty 15, CALL, Sun Ultra 25 / 45 Sata HDD WTS The following Sun Ulta 25 / 45 Sata HDD : 390-0303 - 80GB Sata HDD - Qty 15 390-0351 - 160GB Sata HDD - Qty 15 Let me know qty you interested, and we send you prices include shipping Thanks Ronen Gispan ronen at tom-c.co.il Not affiliated with seller, etc. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

7 years, 2 months

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Which DEC machine made use of th pre Flip-Chip board?

by jfoust＠threedee.com

At 04:49 AM 12/21/2018, Mattis Lind via cctalk wrote: >There is an auction for some kind of early DEC module. It appears to be a >bit slice of MB, AR and MQ. There is also a signature by Gordon Bell on the >board. Back in 2006 I asked Gordon Bell to confirm the provenance of a similar board that I bought on eBay in 2001. See below. - John From: "Gordon Bell" <gbell at microsoft.com> To: "John Foust" <jfoust at threedee.com> Yes. I signed the PDP-6, 4 register, bit slice board in the photo. It came from the Computer Museum in Boston where it was sold in their store Let me be clear The Computer Museum (TCM) was NEVER called the Boston Computer Museum... Boston was a temporary home when computing passed through New England, but the city itself gave nothing to it. I don't believe the origin can be traced to any machine, since there were no serial numbers, and the modification level would also be too hard to correlate with any time or place. The Museum got a large number of spares and scraps of all kinds from Digital and it was undoubtedly one of those. To my knowledge, the museum has never engaged in gutting machines for components, although I would happily agree that this is a good idea when we have duplicates and crippled or partial artifacts. As a former collector, founder, and board member of the Digital Computer Museum > The Computer Museum >> current Computer History Museum (a name I deplore and that exists only because of the way the Museum left Boston) I have always been a strong advocate of getting as many artifacts into as many hands as possible, and this includes selling museum artifacts when appropriate. In essence a whole industry of museums and collectors is essential. Incidentally, at one point there was a flame in pre-blog days about the tragedy of the museum selling boards, etc. in which I never engaged. As someone who has contributed about $10 million as well as time, etc. to this endeavor, I can only shake my head... and wonder where those folks were when the museum needed their financial and time support. The lovely ending is that the museum finally has a wonderful home and caring environment with lots of people that support it with love, time, and money. Hope you have or intend to visit it in Mountain View. I trust I have your own financial support and trust you are a member there, too. See <http://www.computerhistory.org/>www.computerhistory.org g -----Original Message----- From: John Foust [mailto:jfoust at threedee.com] Sent: Saturday, February 11, 2006 1:31 AM To: Gordon Bell Subject: PDP-6 board from BCM? Can I confirm the provenance of an item I purchased? It's an S6205D board, signed by "Gordon Bell". Below is a Usenet post that may describe the event at the Boston Computer Museum where it was first sold. Did you sign this board, and do you remember the circumstances? - John Article 1624 of alt.sys.pdp10: Path: shellx.best.com!news1.best.com!sgigate.sgi.com!enews.sgi.com!decwrl!pa.dec.com!nntpd.lkg.dec.com!lead.zk3.dec.com!zk2nws.zko.dec.com!denton.zko.dec.com!amartin From: amartin at denton.zko.dec.com (Alan H. Martin) Newsgroups: alt.sys.pdp10 Subject: Re: Working for PDP-10 En Date: 21 Feb 1996 13:12:21 GMT Organization: DEC Lines: 27 Message-ID: <4gf5nl$kun at zk2nws.zko.dec.com> References: <DMJ1IM.MuJ at network.com> <1996Feb14.164932.1 at eisner.decus.org> <aldersonDMsnx7.5vM at netcom.com> NNTP-Posting-Host: denton.zko.dec.com In article <aldersonDMsnx7.5vM at netcom.com> alderson at netcom.com writes: >In article <1996Feb14.164932.1 at eisner.decus.org> stevens_j at eisner.decus.org >(Jack H. Stevens) writes: ... >>How about trying The Computer Museum, in Boston? (also at http://www.tcm.org) > >Bad idea. The Computer Museum has buried any interesting (read "36-bit") >hardware. They were given, for example, the Stanford Artificial Intelligence >Laboratory PDP-6 in 1984, after it was shown at the Fall DECUS Symposia (for >the 20th Anniversary of 36-Bit Computing). > >It has never been made available for public view; as far as anyone can tell, >it has disappeared from the face of the earth. I'm hazy on dates, but if the 6 in question was donated before the museum's move from MR2 to Boston, you ain't likely to see it in one piece ever again. They had a garage sale of unwanted items in the MR1 cafeteria one Saturday before the move, and were selling a PDP-6 module-by-module. An S6205K "Arithmetic Registers" module (1-bit slice of AR/MQ/MB/<light buffer>) went for $7, autographed by Gordon Bell. I asked him whether read-in mode was implemented as a diode array encoding instructions. He said no, and kindly recommended the 6205 as a particularly central module to have, instead. /AHM -- Alan Howard Martin AMartin at TLE.ENet.DEC.Com

7 years, 2 months

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Orphan HP Alphaservers looking for a new home

by rlloken＠telus.net

On Tue, 18 Dec 2018, Tapley, Mark via cctalk wrote: > Not to start a flame war, but I?m well aware VMS supports clustering > pretty well, so I?m puzzled - does anyone know why the Product Description > called out Tru64 rather than VMS or both? Was Compaq de-emphasizing VMS > when that was written? DEC, Compaq, and HP always had separate part numbers and product descriptions for Tru64, VMS, and Windows systems. I know from repeated experiance that you can run either OS on these systems and I also know that all the ES45 hardware is supported by VMS including the video cards. I also know that the DS20 mother boards had hardware on them such as USB controllers and maybe SCSI controllers that were not supported by either OS. -- Richard Loken VE6BSV : "...underneath those tuques we wear, Athabasca, Alberta Canada : our heads are naked!" ** rlloken at telus.net ** : - Arthur Black

7 years, 2 months

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P112 redesigned for Z280?

by dave＠661.org

My reply is at the bottom. Please put your reply there too. On Tue, 4 Dec 2018, ben via cctalk wrote: > On 12/4/2018 1:17 PM, Tony Nicholson via cctalk wrote: >> Hello David >> >> I saw your posting on the cctalk mailing list regarding RSX180. >> >> It is Hector Peraza that's been tinkering with this. He intends making the >> full source-code available via SourceForge or GitHub but is still working >> on preliminary web pages and documenting etc. No doubt he will provide you >> with more details. >> >> I've been tinkering with a Z280 system designed by Bill Shen (the Z280RC on >> the RetroBrew web site at >> https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:z280rc ) >> and have contacted Hector about porting it to the Z280. > > That is the easy part, where is the 99 cent dumb terminal to go with it? > Ben. That's got me thinking... Suppose I redesign the P112 board to take a Z280 CPU. Would you guys go for it? I'd like to come up with a way to use a socketed CPU or put a surface-mounted chip on a carrier board to allow greater versatility with playing with different Zilog chips. -- David Griffith dave at 661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

7 years, 2 months

5
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Want/Available list

by jnc＠mercury.lcs.mit.edu

> From: Chris Hanson > Do you mean you would prefer to visit a web page to read the latest > posts on cctalk rather than have them delivered to you via email? Hey, that's how I read CCTalk: http://www.classiccmp.org/pipermail/cctalk/ I don't want all this cruft clogging up my inbox. Noel

7 years, 2 months

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8-Update

by aek＠bitsavers.org

On 12/15/18 11:36 PM, Rod G8DGR via cctalk wrote: > However I began to think would it be possible to create a close copy of an ?8/e out of ?modern parts. Redoing the CPU in obtanium TTL would be desirable.

7 years, 2 months

12
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Want/Available list

by guykd＠optusnet.com.au

At 10:50 PM 20/12/2018 +0100, you wrote: >> How about you not join a nearly 20 year old mailing list and start >> insulting people, most of which have probably been in the computer >> industry longer than you've been alive? > >insulting? I posted a link to a project just to share the fun and I >got suggested to drop it, which is extremely rude and irritating. >Besides, I suggest and offered free space when here you are all >claiming that it's difficult to follow posts about things and parts, >and yet again I got a figurative finger > >so don't try to drag me down on your cliche' You should relax. Take it easy. Your http://www.downthebunker.xyz/ site has a lot of promise, but starting any such project is hard. Plus retrocomputing definitely has a relatively small interest group, so don't expect a huge wave of users. But two things are not helping. One is your site's idiosyncratic nomenclature. From the domain name, title logo, 'create account', much seems chosen to be more clever than informative. I'd suggest being more boring but helpful. You. I've only read 2 or 3 posts by you, and already get the impression you are too sensitive and ready to get your back up. You're here in a forum of mostly tetchy old greybeards. (I'm one.) To quote your own site's user agreement: R E S P E C T ! No one here intends to insult you. But few are going to ignore a hostile and argumentative attitude. Chill. The text you replied to above is NOT a 'figurative finger', it's wise advice, just phrased in a direct manner. You are creating conflict where there was none. You should know the rule with online discussion: there's no emotive feedback, and written text often doesn't come out exactly as intended. So allow a much wider margin of acceptance than in a f2f conversation. tl;dr: Chill. Guy

7 years, 2 months

1
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TSC Assembler?

by microtechdart＠gmail.com

Hi, all. Would anyone here happen to have access to the original early 80s binary files to to run TSC Assembler? http://bit.ly/2rLsORe I'm looking for the vintage software that this document refers to: TSC Floating Point Package by Technical Systems Consultants. I know there's a fair number of more modern assemblers that will accomplish essentially the same thing (LWASM, A09, etc), but I was curious to see, and play with, the old-school version of this on one of my vintage machines... Thanks, everyone! AJ -- Thanks, AJ Palmgren

7 years, 2 months

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hp 9816 keyboards

by emu＠e-bbes.com

Always wanted to have one, but they never come with a keyboard :( Anybody ever made a converter to PS/2 for it? So it could be used, until I find a REAL keyboard? Or will the keyboards never show up? Then a PS/2 converter is probably a smart thing anyway? Cheers & thanks!

7 years, 2 months

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◾NSC 8477 Was: New takes on XT-IDE, a new FDC, and a new CM/S GAL

by cctalk＠ibm51xx.net

>No, the CCIV initially had a plain-jane Intel rev 0 82077AA in a 68 pin >PLCC. After Intel "improved" the chip to the 82077AA-1, FM ceased to >work. Fortunately, as I mentioned NSC 8477 is a plug-in replacement, >with the exception of not needing an extra external cap (the pin is NC >on the National chip). Chuck, I read through the thread at VCF and see that the 8473 is not drop-in swappable with the 8477. One more question on the 8477 do you know if there is a significant difference between the 8477AV and the 8477BV revision? Thanks. -Ali

7 years, 2 months

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Sperry, Focus, IBM, and Chicony keyboards added

by sales＠elecplus.com

7 years, 2 months

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OT RE: 3D printer $179.99 (today ONLY) (Was: 8-Update

by jwest＠classiccmp.org

Fred wrote... In addition, how hard would it be to 3D print some parts to turn it into a PLOTTER? ------- I have not seen or done the below myself. But I have heard that there are plenty of conversion kits out there for 3d printers to do: As fred asked... https://tinyurl.com/y9d7sbwt Also... PCB creation. Some are doing pcb's by adding a small laser module to the hotend and exposing photoresist plates and then washing off all but the traces and pads. Others are mounting a conductive ink pen to the hot end and drawing the traces. Some are building thin channels for the traces, and filling them with conductive paint. Some are laser engraving or even cutting with a small (8000 mW continuous) CO2 laser, again, on the hot end. Some are casting metal parts by 3d printing molds. There are new filament materials coming out all the time. My new favorite is a wood filament. It's just wood particles in another medium, sure... but it can be sanded and will take stain. That's close enough for me! There's a reason getting a 3d printer took me away from vintage computers for a while ;) J

7 years, 2 months

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DG Nova 4 for pickup on Lon Gisland

by cclist＠sydex.com

Cribbed from VCF: https://www.ebay.com/itm/Data-General-NOVA4-Nova-4-nova-desktop-computer-mi… Chuck

7 years, 2 months

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Retarded ebay prices

by sales＠elecplus.com

https://www.ebay.fr/itm/HP-250-Hewlett-Packard-Workstation-mit-optionaler-Ha rddisk-7910-SAMMLERQUALITAT/173303250279?hash=item2859adbd67:g:7r8AAOSw0dha7 dD8:rk:49:pf:0 Nice item, but crazy price! Located in Germany, only ships to the EU. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

7 years, 2 months

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Bluebox AVR boards still available

by dave＠661.org

I still have Bluebox AVR boards ready to ship out. -- David Griffith dave at 661.org

7 years, 2 months

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Off-Topic : RE: 3D printer $179.99 (Was: 8-Update

by jwest＠classiccmp.org

Fred wrote.... >> If you are seriously considering getting one, consider: >> https://www.woot.com/category/computers?ref=w_gh_cp_5 >> That offer is for 24 hours! I've had dual time-sinks the past year, a 3d printer and a high end drone :) The 3d printer I got was the creality ender 3 that is mentioned above. First, you will not find a bad review for it, all the reviews are glowing. Most reviews also say it's print quality and print-features are on-par with $1000+ printers. That is correct, and I paid $175 for mine. I love it. That being said, the ender 3 has some design deficiencies. If you buy one, plan on spending maybe $50 to $100 on upgraded options right off the bat. Once you do that - it is a better printer than many of the big names people will likely recommend. If you are wanting to get a printer and start producing production quality parts right out of the box, the ender 3 is not for you. If you are willing to tinker and upgrade just a tiny bit... you'll be really happy. J

7 years, 2 months

3
2
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ISO: AT&T 630 MTG Terminal Keyboard

by derschjo＠gmail.com

Hey All -- Picked up a nice AT&T 630 MTG terminal, sans keyboard as so many terminals are these days. Curious if anyone out there might have one available. You can see a picture of one here: http://bitsavers.org/pdf/att/630_mtg/630_MTG_Brochure_1987.pdf. I believe the part number to be 33401 or 33538). It's a fairly distinctive keyboard in that the arrow keys are arranged in a "plus" pattern. Thanks in advance! Josh

7 years, 2 months

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Any VCF Forum Mods or Admin here?

by johnhreinhardt＠thereinhardts.org

Does anyone here have any pull or contacts with the owner or moderator at the Vintage Computer Federation forums?? I've been a member there since January 2014.? In the past, I've lurked a lot, made a post here and there but have been pretty inactive. As such, my account is still moderated and post must be approved. In October I got more active, culminating with a thread asking about using a SCSI2SD card with a MicroVAX and OpenVMS V7.3 <http://www.vcfed.org/forum/showthread.php?66437-More-SCSI2D(-V6)-and-OpenVM…>. After a few waits to get post approved, I figured at some point I would get un-moderated, but no such luck.? So I wrote the Site Admin Erik <http://www.vcfed.org/forum/member.php?4-Erik> a PM and asked to be un-moderated.? He wrote back that it was done but unfortunately my next post and any others since then are still being held for approval.? That was October 27th.? They still have not been approved (nor rejected, they are in limbo as far as I know).? I PMed Erik back but according to his profile he hasn't logged in since October 26th.? After a while I sent a message to the moderators as outlined in this sticky <http://www.vcfed.org/forum/announcement.php?f=23&a=2>. No response. So I am asking here because I figure there must be some overlap and maybe someone know someone that can help Thanks. -- John H. Reinhardt

7 years, 2 months

2
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Core memory emulator using non volatile ram.

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning <paulkoning at comcast.net> >>> core memory details such as destructive read weren't visible to the >>> CPU > DATAIP/DATAO on the Unibus doesn't depend on the destructive read > property. Yes, the CPU can't tell what the memory is doing. > The reason it existed is that it allows core memory to optimize the > timing In other words, it's only there to allow the CPU to act in a way that works well with core memory. Whether that means that the way core operates is "visible" to the CPU is a debate about definitions. Put it another way - do any modern CPU's do 'read-modify-write' cycles (other than for interlocks in a multi-CPU system)? Noel

7 years, 2 months

1
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Orphan HP Alphaservers looking for a new home

by rlloken＠telus.net

Ladies and gentlemen, I have immediate access to four Alphaservers, an RA8000 raid server, and the associated fibre switches in need of a new home. There three servers that were running Tru64 Unix 5 when shut down a week ago, they are a DS15, and two ES45s. There is also a third ES45 which has not run in a decade and was kept around as a cold spare. None of the RA8000 disk will be available because the present owner is protecting his data (of course) but all of the unused spare disks are available and they will fit the internal slots in the DS15 and ES45s which may or may not have disks depending on the whim of the present owner. Lots of paper docs and Tru64 OS installation kits but no licenses. They can be had for free but shipping will most assuridly not be free. -- Richard Loken VE6BSV : "...underneath those tuques we wear, Athabasca, Alberta Canada : our heads are naked!" ** rlloken at telus.net ** : - Arthur Black

7 years, 2 months

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Spotted an NOS IBM 2314 disk pack

by aek＠bitsavers.org

https://www.ebay.com/itm/vintage-computer-Wright-Line-Disk-Pack-Data-Proces… someone was looking for one in the recent past

7 years, 2 months

1
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Data General D214 terminals

by sales＠elecplus.com

Found a couple in MA. The company is an old Data General dealership for over 20 years. Bob Smolinsky Sr. Purchasing Mgr / Sales <mailto:bsmolinsky at congruity.com> bsmolinsky at congruity.com Ph: 781-826-9080 Mobile: 617-435-4884 56 Pembroke Woods Drive, Pembroke, MA. 02359 Tell him I sent you. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

7 years, 2 months

1
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IF you need these old vintage parts, PLEASE grab them before the keyboard keids do!

by sales＠elecplus.com

https://www.elecshopper.com/vintage-computers.html I really would rather these go to someone who needs them to complete a system than to the destroyers of keyboards. I am trying to get more of the vintage stuff listed. If you want to see items as they are listed online, please turn on your RSS feeds. https://www.elecshopper.com/rss/ Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

7 years, 2 months

5
5
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An interesting talk about Apollo Guidance Computer

by dkelvey＠hotmail.com

Carl talks about the restoration he is doing with the computer and some video cuts. Carl has several complete videos on this web page as well. https://youtu.be/3rz7gAOWVsI?t=3188 Dwight

7 years, 2 months

1
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Orphan HP Alphaservers looking for a new home

by rlloken＠telus.net

On Mon, 17 Dec 2018, Tapley, Mark via cctalk wrote: > Wikipedia reports there is some variability in ES45 models, including > number of CPU and amount of memory. Any idea what model/spec these are? If I recall correctly the ES45s each have 2 CPUs. The three ES45s are not intentical, the one that was purchased first had a CPU upgrade after a couple years but I do not recall either part number. I have no idea what the other two have for CPUs. Two of them have 32Gbyte of RAM, the cold spare is unknown. > Also: ?...The AlphaServer SC was a supercomputer constructed from a set of These were single computers that happen to be in the same rack. Two of them have the special HP cluster card whose name and number I forget so they were formed into a TruCluster once upon a time. > I hope hard enough that this cluster gets saved that if no-one else comes > forward, I?d like to be notified?.I?m not certain what I could arrange, > but the thought of running my own personal Alpha supercomputer ? wow. Not > sure how to solve the license issue though. I assume OpenVMS doesn?t > support that level of parallelization? I assume that VMS does support that level of parallelization. Anything Tru64 Unix does VMS does better. Anything Linux does Tru64 Unix does better. Have I made my bigotry clear? You will seriously raise your electric bill and somewhat lower your heating bill. All of this hardware is 120V single phase but it would like a couple circuit breakers all to itself. -- Richard Loken VE6BSV : "...underneath those tuques we wear, Athabasca, Alberta Canada : our heads are naked!" ** rlloken at telus.net ** : - Arthur Black

7 years, 2 months

4
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Orphan HP Alphaservers looking for a new home

by rlloken＠telus.net

On Mon, 17 Dec 2018, Jacob Ritorto wrote: > There are contractors who have the hardware to correctly and contractually > perform mil spec data wipe in situations like this. > More thorough than leaving sitting on some shelf and crossing fingers that > one will find time to burn them or whatever. I seriously don't care what happens to their data or their disks. -- Richard Loken VE6BSV : "...underneath those tuques we wear, Athabasca, Alberta Canada : our heads are naked!" ** rlloken at telus.net ** : - Arthur Black

7 years, 2 months

1
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Lots of unused CompacTape IV Cartridges Available

by rlloken＠telus.net

On Mon, 17 Dec 2018, Kevin McQuiggin wrote: > I have a couple of compatible drives that I use on my Microvaxes, if you > could spare say 6 then that?d be great. I live in Vancouver and of course > would pay shipping! Good! Six down, 114 to go! I will get six for you. -- Richard Loken VE6BSV : "...underneath those tuques we wear, Athabasca, Alberta Canada : our heads are naked!" ** rlloken at telus.net ** : - Arthur Black

7 years, 2 months

1
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Lots of unused CompacTape IV Cartridges Available

by rlloken＠telus.net

I have access to a trove of maybe 10 dozen unused CompacTape IV cartridges. These can be had free for the cost of shipping. I may be able to talk them out of a few DLT4000 and DLT tape drives as well, I don't know about that part. Anybody besides me still backing up his data on DLTs? I have a lifetime of spare cartridges already. -- Richard Loken VE6BSV : "...underneath those tuques we wear, Athabasca, Alberta Canada : our heads are naked!" ** rlloken at telus.net ** : - Arthur Black

7 years, 2 months

2
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Orphan HP Alphaservers looking for a new home

by rlloken＠telus.net

On Mon, 17 Dec 2018, Grant Taylor via cctalk wrote: > On 12/17/2018 04:02 PM, Richard Loken via cctalk wrote: >> I have immediate access to four Alphaservers, an RA8000 raid server, and >> the associated fibre switches in need of a new home. > > Where are the servers located? Are they in Athabasca, Alberta Canada near > you? Yes, they are within 1/2 mile of me... In Athabasca, Alberta Canada > Is the owner keeping the raw disks or are they disks staying in sleds / > enclosures? Read: Are the enclosures sans-disks available? I can get the sleds if they are of use to you. These machines all use the narrow HP Storage Works carriers not the wide blue or green ones. >> They can be had for free but shipping will most assuridly not be free. > > Does it need to move as a single lot? Or is someone (you?) willing to passel > things out (assuming everything moves relatively quickly)? All the dispersal, packing, and shipping will be done by me. The owner wants no part of it. I am willing to send small quantities of things hither and yon. Shipping a DS15 will be hard work but possible, shipping an ES45 will be seriously hard. I am unwilling to box and ship the RA8000/HSG80 but I am willing to part it out. Anybody who wants to come visit Athabasca with a 1/2 ton truck can have the whole lot including the 7 foot rack or a subset of the whole. I would be thrilled not to have to pack and ship stuff. -- Richard Loken VE6BSV : "...underneath those tuques we wear, Athabasca, Alberta Canada : our heads are naked!" ** rlloken at telus.net ** : - Arthur Black

7 years, 2 months

1
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CDC floppy disks on Ebay.

by mattislind＠gmail.com

Don't know if this worth saving. https://www.ebay.com/itm/283294561797 8 inch CDC disks from 1982. Maybe something interesting?

7 years, 2 months

11
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Core memory emulator using non volatile ram.

by ggs＠shiresoft.com

FRAM or MRAM. I make extensive use of them in my projects. Everspin has a few (all SMT and 3.3v). As I recall they run ~$20/ea for 4Mb (512K x 8 or 256K x 16). TTFN - Guy > On Dec 15, 2018, at 1:22 AM, Rod G8DGR via cctalk <cctalk at classiccmp.org> wrote: > > I have an idea to produce an MM-8 clone using RAM that acts like core when turned off. > Can anybody suggest a chip that will do this? > > Rod Smallwood > > > Sent from Mail for Windows 10 >

7 years, 2 months

11
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Core memory emulator using non volatile ram.

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning > For that matter, core memory details such as destructive read weren't > visible to the CPU Umm, not quite. If you'd said 'core memory details such as destructive read weren't visible to the _program_', you'd have been 100% correct. But as I suspect you know, just overlooked, most (all?) of the -11 CPU's do use 'read-modify-write' cycles on the bus (DATIP in UNIBUS terms, DATIO in QBUS) where possible precisely for the benefit of core memory with its destructive readout. (And there's some hair for interlocking the multiple CPU's on the -11/74 which I don't recall off the top of my head.) And I have a vague memory of something similar on other early DEC machines; probably some -8 models. Noel

7 years, 2 months

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Core memory emulator using non volatile ram.

by paulkoning＠comcast.net

> On Dec 16, 2018, at 10:49 PM, Rod G8DGR via cctech <cctech at classiccmp.org> wrote: > > > I?m trying to make a look and feel reproduction PDP-8/e. > So the memory characteristics need to be as close as possible. > > An original ( and I do have one) and the copy when placed side by side should run in sync. > When executing he same code ? What code I couldn?t care. > > Rod All you need for that to be true is to use the same bus timing as the original. What happens behind the scenes is unimportant. At LCM while restoring their CDC 6500 they built replacement memory modules, which actually mimic not just core memory cycle timing but also core memory waveforms -- which took some fiddling with pulse transformers. But behind the interface logic there's simple modern memory, probably SRAM, I forgot. paul

7 years, 2 months

1
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Core memory emulator using non volatile ram.

by charles.unix.pro＠gmail.com

On Sat, Dec 15, 2018 at 6:15 PM Rod G8DGR via cctalk <cctalk at classiccmp.org> wrote: > All very interesting.. 1201 alarm while I deal will all of the information > Rod > > 1202 coming up... I don't know specifically about the various memory types being bandied about, but I do know that the destructive read behavior of core memory my be required for some architectures; "load and clear" type instructions rely on the suppressing the write-after-read cycle to make the instruction atomic, allowing the implementation of data locking instructions. For some architectures, it may be that any replacement memory would have to support the suppression signal to work correctly. -- Charles

7 years, 2 months

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AW: Core memory emulator using non volatile ram.

by gerhard.kreuzer＠liftoff.at

Hi Rod, take some microcontroller and some serial flash memory. With best regards Gerhard -----Urspr?ngliche Nachricht----- Von: cctalk [mailto:cctalk-bounces at classiccmp.org] Im Auftrag von cctalk-request at classiccmp.org Gesendet: Samstag, 15. Dezember 2018 19:00 An: cctalk at classiccmp.org Betreff: cctalk Digest, Vol 51, Issue 15 Send cctalk mailing list submissions to cctalk at classiccmp.org To subscribe or unsubscribe via the World Wide Web, visit http://www.classiccmp.org/mailman/listinfo/cctalk or, via email, send a message with subject or body 'help' to cctalk-request at classiccmp.org You can reach the person managing the list at cctalk-owner at classiccmp.org When replying, please edit your Subject line so it is more specific than "Re: Contents of cctalk digest..."

7 years, 2 months

7
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remove bad yelpMATERIAL INGEST. adams associates COMPUTER CHARACTERISTICS QUARTERLY 1963

by couryhouse＠aol.com

How to Remove Bad Yelp Reviews (and Report Fake Yelp Reviews)MATERIAL INGEST? ?ADAMS ASSOCIATES? ?COMPUTER CHARACTERISTICS QUARTERLY 1963 ? HAVE ONE? A? LITTLE? CUTE? LOOKS? AS? ?NEW POCKET? GUIDE? ? I? ?SEE ONE IN GOOGLE? SCANNED? ?FROM? 67? SO DO NOT KNOW THIS? NEEDS TO BE? OR? ? ALSO? A? EAI? POCKET? CALENDAR? APPOINTMENT? REMINDER? BUT? ? AS? NEW? NO? FASCINATING NOTES? ALAS.. ? ALSO A? 67 STOCK HOLDERS AGENDA? SHEET.? PURPLE? ? DITTO? ?REPRODUCED. ? ? ?

7 years, 2 months

8
12
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HUNTING EXISTENCE OF NCR 304 COMPUTER PCB BOARD PIX IS THERE ONE OF THESE EVEN LEFT?

by couryhouse＠aol.com

HUNTING EXISTENCE OF NCR 304 COMPUTER PCB?BOARD PIX IS THERE ONE OF THESE EVEN LEFT?

7 years, 2 months

1
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ok but we did get some cool EAI stuff... sometimes I kist stuff as this in case there is similare interest or needs

by couryhouse＠aol.com

MATERIAL INGEST ADAMS ASSOCIATES COMPUTER CHARACTERISTICS QUARTERLY 1963 HAVE ONE A LITTLE CUTE LOOKS AS NEW POCKET GUIDE I SEE ONE IN ?GOOGLE SCANNED FROM 67 SO DO NOT KNOW THIS NEEDS TO BE OR? ?ALSO A EAI POCKET CALENDAR APPOINTMENT REMINDER BUT AS NEW NO ?FASCINATING NOTES ALAS.. ?ALSO A 67 EAI STOCK HOLDERS AGENDA SHEET. PURPLE DITTO REPRODUCED.

7 years, 2 months

1
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Core memory emulator using non volatile ram.

by elson＠pico-systems.com

On 12/15/2018 11:19 PM, Rod G8DGR via cctech wrote: > > > However I began to think would it be possible to create a close copy of an 8/e out of modern parts. > > > Finally the big one ? Omnibus and the connectors its made from. A 3D printing candidate? > I?m going to autopsy a busted connector and see how they are constructed inside. Yup, this will be a problem. A couple decades ago, there was a very common technology, press-fit backplanes. You made a PC board with all the interconnect on it (power + signals) and pressed-in contact fingers. Then, connector housings were pressed onto the contacts. I don't know if anybody still makes these contacts. It would be hugely expensive to have custom ones made, but if they are still being made they might not be too bad. I'm not sure 3D-printed housings would be strong enough for this, but maybe if ABS they would. Of course, there might actually still be somebody making clones of the DEC connectors. They used basically the same design for PDP-8, PDP-11, KL10, VAX, etc. Certainly, there were people cloning them back in the 1980's. Winchester made the official ones for DEC. > Objectives > The basic board set as original. M8300, M8310, M8320 etc. > Same form factor > Plug compatible ? but board contents can differ from original Well, this could all be done with one FPGA, but if you want to do each PC board separately, a modest CPLD or small FPGA would certainly do each board's functionality. Jon

7 years, 2 months

3
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8-Update

by pbirkel＠gmail.com

>-----Original Message----- >-From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Rod G8DGR via cctalk >-Sent: Sunday, December 16, 2018 2:36 AM >-To: General Discussion: On-Topic and Off-Topic Posts >-Subject: 8-Update > >Sheesh!! >Well what a response. >This stems from my (so far) successful major over haul of my PDP-8/e. >I found one failed 7474 and one failed 8881 ? replaced and now working. >I think I have the rim loader toggled in and will attempt to send a paper tape image from Hyperterm >Strangely I do have at least three genuine complete 4k memory sets. > >The eightstoration will continue. > >However I began to think would it be possible to create a close copy of an 8/e out of modern parts. >As you all know I make front panels so that?s not a problem. >I did manage to copy my (distorted) bezel in resin. >A friend has been able to 3D print toggle switch leavers that fit and work. >... Could you (or your fried) tell us more about "A friend has been able to 3D print toggle switch leavers that fit and work"? I have need to do the same :-<. And I don't have a 3D printer, either. paul

7 years, 2 months

3
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8-Update

by rodsmallwood52＠btinternet.com

Sheesh!! Well what a response. This stems from my (so far) successful major over haul of my PDP-8/e. I found one failed 7474 and one failed 8881 ? replaced and now working. I think I have the rim loader toggled in and will attempt to send a paper tape image from Hyperterm Strangely I do have at least three genuine complete 4k memory sets. The eightstoration will continue. However I began to think would it be possible to create a close copy of an ?8/e out of ?modern parts. As you all know I make front panels so that?s not a problem. I did manage to copy my (distorted) bezel in resin. A friend has been able to 3D print toggle switch leavers that fit and work. Vince Sylngstat has done a console board PCB ?layout. Power supply clearly not a problem. So what?s left? Case? ? Well I have one of those and I suspect a sheet metal shop would not have a problem Finally the big one ? Omnibus and the connectors its made from. A 3D printing candidate? I?m going to autopsy a busted connector and see how they are constructed inside. Objectives The basic board set as original. M8300, M8310, M8320 etc. Same form factor Plug compatible ? but board contents can differ from original The idea is replace one item at time until you no longer have any DEC parts. Yup a FAKE-8 I may even need a label ?No part in this PDP-8/e computer was manufactured by digital equipment corporation? Rod Smallwood digital equipment corporation 1975-1985 Sent from Mail for Windows 10

7 years, 2 months

1
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Christmas came early...

by wh.sudbrink＠verizon.net

In the form of an estate sale. The first in a long while where I found anything interesting. In addition to buying a large box of 7400 and 4000 series chips, all with 1970's date codes, I got two vintage keyboards: http://wsudbrink.dyndns.org:8080/images/kb_pics/20181215_162104.jpg http://wsudbrink.dyndns.org:8080/images/kb_pics/20181215_162139.jpg The estate sale employees have no idea where the associated systems (if any) are. They did not see them during the sale preparation and have not sold them. I also got a manual and set of 8 inch floppies for "Unicorn Systems Software Tools For CP/M". Twenty floppies, all with factory labels, various libraries, utilities and documentation files. I have not made a careful study of them yet (I just got home with them an hour ago). Bill S. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

7 years, 2 months

2
2
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Looking for a home for most issues of BYTE Magazine

by john＠ziaspace.com

Thank you all for all of the interest. The first person who wrote me isn't far away at all and will give it a good home, so I'm going to go with him. While I'm fetching those, I'm going to make a list of other older hardware for which I'd like to find homes, so I'll post about that, and possibly about other magazines, in a week or so. Thanks! John

7 years, 2 months

1
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Data Electronics Incorporated (DEI) CMTD-300S2 tape drive manual

by microtechdart＠gmail.com

For view or download: http://bit.ly/2RZK28Q I came across this, and noticed that this early of a DEI model was not yet archived at http://bitsavers.org/pdf/dei I'm not sure that it is scanned to the requirements of bitsavers, but I don't have access to the original, so I offer this if it is usable or of interest to anyone here. I'll probably also post it on one of my sites, at http://QICreader.com I also just acquired this DEI 301034-2 QIC Tape Drive, and have begun to reverse-engineer it. https://ebay.to/2EjyxFn Best always, -- Thanks, AJ

7 years, 2 months

2
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Looking for a home for most issues of BYTE Magazine

by john＠ziaspace.com

Hi, all, I have a collection of most of BYTE Magazine from the beginning through about 1985. Instead of selling it on eBay, I'd rather find a home for it where people can enjoy it. I also have a small collection of other computer magazines from the late 1970s and early 1980s which I'd like to include. Does anyone know of any person or organization within a reasonable distance from southern California who might take these magazines and preserve them, instead of just selling them on eBay? Thanks! John -- I don't know which scares me more - that people adhere to the idea of an omnipotent being powerful enough to create the universe, but whose supposedly most cherished creation is a race modeled after himself which can't stop hurting and killing each other, or the idea that those same people cannot or will not consider the possibility that the universe is random and unfeeling, and it's up to us to create order and beauty out of chaos and entropy.

7 years, 2 months

9
14
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Core memory emulator using non volatile ram.

by elson＠pico-systems.com

On 12/15/2018 03:22 AM, Rod G8DGR via cctalk wrote: > I have an idea to produce an MM-8 clone using RAM that acts like core when turned off. > Can anybody suggest a chip that will do this? > > Any CMOS SRAM chips can do this, with a backup battery. I used a IS62WV6416DBLL in a project a while ago. I did not use in in battery-backed mode, but it could do that. You do have to make sure that any outputs from the memory are driven to the high-impedance state during power-off to prevent draining the battery. Jon

7 years, 2 months

1
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Core memory emulator using non volatile ram.

by bobalan＠sbcglobal.net

On 12/15/2018 1:22 AM, Rod G8DGR via cctalk wrote: > I have an idea to produce an MM-8 clone using RAM that acts like core when turned off. > Can anybody suggest a chip that will do this? > > Rod Smallwood > > > Sent from Mail for Windows 10 > > I used Everspin MRAM chips for my PDP-8e memory cards. It's just like SRAM, fast at 35 ns, and unlimited read/write endurance. Only drawback is it's 3.3 volts only. I just used level converters. It's a magnetoresistive memory, feels just like core. $12 for a 64K x 16 chip at Digikey. Bob -- Vintage computers and electronics www.dvq.com www.tekmuseum.com www.decmuseum.org

7 years, 2 months

2
1
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Core memory emulator using non volatile ram.

by pbirkel＠gmail.com

Perhaps Cypress FM1808 (32Kx8). Obsolete, but available on eBay. SOP for a bit of extra challenge! -----Original Message----- From: cctech [mailto:cctech-bounces at classiccmp.org] On Behalf Of Rod G8DGR via cctech Sent: Saturday, December 15, 2018 4:22 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Core memory emulator using non volatile ram. I have an idea to produce an MM-8 clone using RAM that acts like core when turned off. Can anybody suggest a chip that will do this? Rod Smallwood Sent from Mail for Windows 10

7 years, 2 months

5
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Core memory emulator using non volatile ram.

by rodsmallwood52＠btinternet.com

I have an idea to produce an MM-8 clone using RAM that acts like core when turned off. Can anybody suggest a chip that will do this? Rod Smallwood Sent from Mail for Windows 10

7 years, 2 months

1
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Documation card readers for sale

by ball.of.john＠gmail.com

About six months ago I struck a deal with a place down in California for four Documation M1000's that I've been able to tell so far they all work but I really don't have space for more than one. I've been trying to sell them at a loss for months now over on the Vintage Computer Forums and Nekochan (if you got here you'll find pictures) but no bites. I swear there were people out there that were looking. Where did you folks go? Might anyone here be interested? I absolutely refuse to put them on the curb. -John

7 years, 2 months

9
15
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Latest batch of goodies from Sellam's VWoCW plus 10% off!

by sellam.ismail＠gmail.com

Merry Christmas and Happy Hanukkah, folks! And holiday greetings to the rest of us celebrating Festivus! It's time to treat yourself or your favorite nerd for the holidays, so as my gift to you I'm offering 10% off anything with a listing date prior to 2018. Check the "Date Added" column in the warehouse item listings--anything listed in 2016-2017 is 10% off!. If you're a previous buyer (I know who you are) the 10% off applies to anything! Here is the latest batch of listings: Xerox 6085 "Daybreak" CPU Xerox 6085 IOP Input-Output Processor (C4) board Xerox ViewPoint 2.0 Software Installation Xerox ViewPoint 2.0 Documentation Set (Volumes 1-6) Xerox Desktop Publishing Series: Ventura Publisher Edition manuals Xerox Telecopier 7032/7033 Facsimile Terminal User Handbook Connect Computer Z183-2 WonUnder II Western Digital VGA Plus C Future Domain Corp TMC-830 Iomega PC2B SCSI Controller Iomega PC2B50F SCSI Controller Orchid ProDesigner VGA Silicon Graphics O2 Workstation IBM Type 7208-001 External 2.3GB 8mm Tape Drive BM BM-401 486 CPU Breakout Adaptor Compaq DeskPro DSM Monitor HP 2641A/2645A/2645S Display Station Reference Manual HP 2647A Graphics Terminal Manual Set HP 13290A/2649A Data Terminal Reference Manual Advanced Gravis Ultra Sound (boxed) Universal Data Systems 212 LP Modem (boxed) You can get to the Virtual Warehouse of Computing Wonders main index to find links to these and many others items here: https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_HJ5oMKuab4zrApI_hi… As always, please contact me directly by e-mail via <sellam.ismail at gmail.com> to make an order or an offer. Thanks! Sellam

7 years, 2 months

1
0
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Researching IBM rare equipment from 50s to 80s

by peter＠vanpeborgh.eu

Fellow geeks of more mature vintage, Do any of you guys know whether it is possible to find out to whom any IBM equipment was sold back in the day? (Still chasing IBM 2321 Data Cell - I never learn!) Many thanks, peter || | | | | | | | | Peter Van Peborgh 62 St Mary's Rise Writhlington Radstock Somerset BA3 3PD UK 01761 439 234 || | | | | | | | |

7 years, 2 months

6
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Documation TM200 card reader - pinch roller restoration

by guykd＠optusnet.com.au

Previously: Manual for Documation TM200 punched card reader Restoration of the mechanics of my TM200 punch card reader progresses. There's a writeup here: http://everist.org/NobLog/20180922_data_in_holes.htm#tm200 Currently I'm machining a mold to cast new pinch rollers - and there's the rub (ok kill me.) The old rubber rollers were decayed to gunk, so there's no chance of measuring their original dimensions. >From the mechanics, if they were just touching the steel capstan rollers they'd have been 27.1 mm Dia. The mechanics has no adjustment or spring tension on the pinch roller positions. Their shafts are in fixed position, so all the spring is in the rubber of the rollers. Someone who recalls seeing one of these working, says the rubber rollers turned while the capstans turned, so they must have been actually pressing on them. But how much squish? Experimenting with a similar diameter silicone roller (from a photocopier) it semes like 0.2mm of 'squish' without a card, seems to give a good grip on a card. The cards are 0.1mm thick. That gives a resting roller diameter of 27.5 mm. Obviously too much 'squish' is undesirable since the roller would get permanently deformed when left idle in one position. The 2-part silicone I'll be using for first try at casting rollers has a cured Shore A durometer rating of 60. I'm hoping someone might have some knowledge of how much punch card reader pinch rollers should press against capstans. Does 0.2mm squish seem right, or am I way off? I can try multiple iterations, boring the mold out a little more to make the rollers bigger. But it would be nice to get it right first time. I don't yet have a TM200 manual, but the M200 manuals seem to cover pretty much identical mechanics. They give no dimensions for the rubber rollers, no mention of the contact pressure, or even diagnosing if the rollers are worn. There are significant differences in the electronics between the M200 and the TM200. I'm really going to need a manual with schematics once I get to debugging and interfacing the electronics. Bitsavers only has M200 manuals, and Al Kossow doesn't seem to have had any luck with > I'm pretty sure I just saw a paper copy of the TM200 manual > which is different from the M200. I'll have to dig around to > try to find it again. If anyone can suggest a source. I'd like to buy a paper copy. Which I'll scan and post at bitsavers etc. Guy

7 years, 2 months

4
4
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AMD Am8177 Datasheet

by jnc＠mercury.lcs.mit.edu

> From: Kyle Owen > Gah...just found it. We've all been there... :-) Noel

7 years, 2 months

5
5
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AMD Am8177 Datasheet

by kylevowen＠gmail.com

Does anyone have a datasheet for an Am8177 shift register? Seems to be ECL. Thanks, Kyle

7 years, 2 months

1
1
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NCR aka NATIONAL 304 Computer - any left in physical form?

by couryhouse＠aol.com

NCR aka NATIONAL 304 Computer - any left in physical form? ? Thanks? ? Ed#? ?www.smecc.org?

7 years, 2 months

1
0
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Manual sources

by mark.kahrs＠gmail.com

Well, as I am sure many of you know, ManualsPlus was "acquired" by the Internet Archive. This story captures the effort: https://www.theatlantic.com/technology/archive/2015/09/introducing-the-arch… Jim Tucker is still selling things on ebay. When we'll see the manuals from the archive, who knows?

7 years, 2 months

4
3
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IBM 3850 cartridge

by peter＠vanpeborgh.eu

Do any of you more venerable IBM types know of a way to open one of these to extract the tape contained inside? It looks a bit fiddly but there might be a trick to it. (Apart from having the mass storage system itself.) Many thanks to you for your information and also to Mr Kossow who kindly let me have some of these. Peter vp || | | | | | | | | Peter Van Peborgh 62 St Mary's Rise Writhlington Radstock Somerset BA3 3PD UK 01761 439 234 || | | | | | | | |

7 years, 2 months

2
1
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Labtool48 Programmer

by holm＠freibergnet.de

Hi all, I've got an Advantech Labtool48 parallel Port Programmer lately for fifty bucks. I've got it w/o any Software, cable or documentation and now I have a few questions. 1. Is the parallel Cable a straight one to one Cable? The Labtool48 has an male connector on the back so a standard cable wouldn't fit.. (ok, think I can reverse engeneer or at least try that if needed..) 2. This isn't a Labtool48UXP, the UXP Version seems to have an USB connector additionally, doesn anyone know if the Software that Advantech provides (http://www.aec.com.tw/software_files/LT48UXP_83203.exe) will work with the Labrtool48? 3. I want to programm Altera PLD's EPM7160LC84. On many sites on the web can be read that Advantech is providing an PDF with the required "pin swapping Table" so the user can build adapters himselves..this seems to be history, the link http://www.aec.com.tw/products/adapters.pdf is dead and the wayback machine shows that it is dead for many years. Doens someone has possibly a copy of this pdf? TIA, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 info at tsht.de Fax +49 3731 74200 Tel +49 3731 74222 Mobil: 0172 8790 741

7 years, 2 months

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SunOS 2.4 Exploit

by seefriek＠gmail.com

I believe SunOS 2.4 is old enough all you need to do is delete the password hash from /etc/passwd to log in without a password. KJ

7 years, 2 months

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Manual sources

by guykd＠optusnet.com.au

At 01:14 PM 12/12/2018 -0800, you wrote: >Well, as I am sure many of you know, ManualsPlus was "acquired" by the Internet Archive. >This story captures the effort: >https://www.theatlantic.com/technology/archive/2015/09/introducing-the-arch… Read it more carefully. Also no, it wasn't. Maybe 1/10 the manuals were 'saved', but that means stacked in moving boxes in storage. Definitely not accessible, not for sale, indexing almost certainly lost. Also, it's about time to check what ultimately happened to them. And don't give me that 'they will get scanned' line. No they won't, and anyway I don't consider digital copies to be valid historical preservation for posterity. No matter what the scan quality (which is almost invariably inadequate anyway.) >Jim Tucker is still selling things on ebay. >When we'll see the manuals from the archive, who knows? What's the bet 'never'? Also, by 'see' I'd prefer 'see, holding an original in my hands.' With the demise of manuals wharehouse/sellers like ManualsPlus that's become MUCH more unlikely. Incidentally, if anyone happens to be near Finksberg, MD, it would be great to get an update on what happened with the building. Is it now some other business? Or demolished/redeveloped? Or just sitting there abandoned? (I'm an urbex enthusiast, I always like to follow the history of old buildings, especially if they become abandonments.) Relevant to claims that the ManualsPlus lease was $10K/month. Really curious to know if that was true. Photos please? Apologies for the following wall-o-text dump. Just for the record. ------------------------------------------------------- On the loss of ManualsPlus. Closed Aug 2015. Manuals Plus. 2002 Bethel Rd, Suite 105 Finksberg, MD. Phone 410-871-1555. Fax 410-871-1255 em: sales at manualsplus.com web: www.manualsplus.com Google maps: https://www.google.com/maps/place/2002+Bethel+Rd+%23105,+Finksburg,+MD+2104… This: F:\__Equip_info\!_GKD_Lists\ManualsPlus_demise See also: Z \__Libraries_destroyed\20150816_ManualsPlus (the saved flickr pics are there.) ---------------- 20141221 http://www.eevblog.com/forum/testgear/manualsplus-going-out-of-business/ 20150815 http://ascii.textfiles.com/archives/4683 Original 'ASCII by Jason Scott' (low bandwidth cap) Same, at archive.org: https://web.archive.org/web/20150815114528/http://ascii.textfiles.com/archi… (with pics) Manuals Plus Loadout - A visit to the Manuals Plus Warehouse, and an Army of Volunteers Clearing it Out. 155 photos. By: Jason Scott (2 pages. Painful saving pics) https://www.flickr.com/photos/textfiles/sets/72157657277241785 See pics on 2nd page - how much was left behind. Tragic. 20150816 An update from Jason. (From Aug 2015 onwards he has many updates.) http://ascii.textfiles.com/archives/4695 20150816 http://www.eevblog.com/forum/testgear/help-needed-to-archive-te-manuals/ (stub) 20150816 http://www.eevblog.com/forum/chat/rescue-mission-25-000-manuals-baltimore/?… 20150818 https://twitter.com/textfiles/with_replies In Realtime: We are barely halfway done http://ascii.textfiles.com/archives/4711 20181213 via cctalk ManualsPlus was "acquired" by the Internet Archive. This story captures the effort: 20150901 https://www.theatlantic.com/technology/archive/2015/09/introducing-the-arch… (The few pics are from the flickr page above. Also the article is typical MSM spin.) My posts in eevblog - rescue-mission-25-000-manuals --------------------------------------------- http://www.eevblog.com/forum/chat/rescue-mission-25-000-manuals-baltimore/m… TerraHertz Posts: 3403 Country: au Why shouldn't we question everything? Re: Rescue mission - 25,000 manuals, Baltimore ? Reply #2 on: August 16, 2015, 11:16:05 am ? Dammit. This would be Manuals Plus. 2002 Bethel Rd, Suite 105 Finksberg, MD. Phone 410-871-1555. Fax 410-871-1255 em: sales at manualsplus.com web: www.manualsplus.com Google maps: https://www.google.com/maps/place/2002+Bethel+Rd+%23105,+Finksburg,+MD+2104… They sent a flyer to customers (including me) last year announcing their impending going out of business. But then they were still listing on ebay long after the end date, so I'd assumed they'd changed their mind. Now suddenly it's "manuals being dumped in the trash" It's a tragedy, and should be criminal that they are dumpstering their manuals. Apparently with no attempt to advertise a giveaway. That counts as deliberate, premeditated destruction of cultural and technological treasures. Along the lines of destruction of libraries. (Btw, google that. It's happening a lot lately in a deliberate program by a certain group.) Hopefully it's not Becky doing the dumping. She is a very nice lady, and appreciates the worth of the manuals. I can't believe she'd do it, even if her boss told her to. That there was no flyer about the actual closure suggests Becky is no longer employed there. I don't know who the business owner is, but I'd certainly like some time 'alone with him.' I'm in Australia, or I'd be there with a semi and filling up shipping containers. WHHHY can't they donate them to an organization able to store them and give them away? I really do think that destroying these old and in some cases unique and irreplaceable manuals should be a crime. People should go there and recover the already dumpstered manuals. And shout abuse at the people doing the dumping. Maybe something involving iron bars and two by fours wouldn't be amiss either. The guy that decided to shut the business down without organizing for the manuals to be saved, deserves a very unpleasant fate. No, the crappy quality scans available online of *some* of these manuals do not count as 'preservation for posterity.' The idea that there are already adequate electronic copies of all these physical manuals is delusional. A similar thing happened in Australia with a manuals company called High Country Service Data, about 20 years ago. They had a warehouse of service manuals, including many from early Australian electronics companies like BWD. Recently I discovered they had 'gone digital' - had all their manuals scanned (with the very crap scanning technology of the time) then destroyed their entire physical archive. I literally wept. No, I don't want to buy your pathetic digital low quality copies, thanks very much. A*hole. Notice on google maps that the building is situated in a semi-rural area. Also ManualsPlus is just one unit of that old factory complex. How much can the storage costs be? Combined with the absence of any giveaway attempt makes me suspect the decision to destroy the manuals may be motivated more by an actual desire to destroy them, than by commercial reasons. So far as I know Becky was the only employee, and she always seemed to be worked off her feet with manuals sales. I can't type words expressing my feelings about this, since this is an all-ages forum. But a lot of them begin with F and C. Edit to add: Darnit. I wanted to save the article pics from http://ascii.textfiles.com/archives/4683 as a record of this cultural crime. But now the site is "Bandwidth limit exceeded". Sigh. It will probably stay that way a while. So I have to go grubbing in caches. -------------------- http://www.eevblog.com/forum/chat/rescue-mission-25-000-manuals-baltimore/m… Re: Rescue mission - 25,000 manuals, Baltimore ? Reply #5 on: August 16, 2015, 11:47:41 am ? Quote from: nctnico on August 16, 2015, 11:22:15 am @TerraHertz: Did it occur to you that they are going out of business because nobody wants the manuals? Your argument is invalid, and merely demonstrates that *you* don't want them. How many people buy ebay'd old gear? Did you actually look at ManualsPlus prices? Quote I'm sure there will be couple of manuals in the collection which are sought after by people trying to maintain old gear but they really don't want to spend $75 for a manual for a piece of equipment they got for $10. You are strawman arguing, and should know better. Not 'a couple', but many thousands of manuals. $75 is way too high, and $10 is 1 to 3 orders of magnitude too low for typical worthwhile bits of old gear. Also, speak to any historian about whether current commercial value is a true measure of historic value. Quote The golden days for service manuals are over because service manuals don't exist anymore. Ha ha, fine example of circular logic there. But the last phrase is precisely correct. Service manuals don't exist anymore. Are you saying that is a good thing? One of the ways in which these manuals are precious, is as a physical demonstration of what good technical documentation should be. To hold up against and shame present day outrageous lack of anything similar. And such examples are not useful if there's just ONE copy in some library somewhere. They need to be held in many copies across a population to have any effect. Every kid learning electronics should personally experience manuals like these, to make them question why present day manufacturers don't produce such things. To show them the benefits of having tech companies run by honest engineers working for the good of society, rather than by a bunch of soulless marketing droids and lawyers. ---------------------- http://www.eevblog.com/forum/chat/rescue-mission-25-000-manuals-baltimore/m… Re: Rescue mission - 25,000 manuals, Baltimore ? Reply #10 on: August 16, 2015, 12:23:33 pm ? Quote from: tautech on August 16, 2015, 12:11:24 pm Quote from: Deathwish on August 16, 2015, 12:07:23 pm I refuse to pay for manuals, why should I scan mine and give them free as I have always done for some ingrate to then sell it on ebay. That's what the FREE manual respository websites are for, upload your obscure manual to make it available to the masses for free. Pretty sure he was just trolling. FWIW, here's the flyer from ManualsPlus in Dec 2014. I bought a few manuals as a result, but was/am too poor to go on a real splurge. Even given cheap shipping via shipito, and that ManualsPlus prices were always reasonable and Becky was being extra generous during the sale. Also I'm pretty sure I mentioned their impending closure here, but didn't save a link to the thread. Where are all the rich philanthropists, who could easily afford to organize a warehouse and one or two staff for this? Considering some of the stupid things people donate millions to, inability to get this done seems really sad. Btw, did anyone save the pics from the original article? ------------------------ http://www.eevblog.com/forum/chat/rescue-mission-25-000-manuals-baltimore/m… Re: Rescue mission - 25,000 manuals, Baltimore ? Reply #13 on: August 16, 2015, 12:55:03 pm ? Quote from: Deathwish on August 16, 2015, 12:27:56 pm I was not trolling anyone thank you. I have always scanned what manuals I have and given them freely, I have even seen one or two then being sold against my wishes on ebay, it rankles and annoys me that people who will offer help to save a collection will then suddenly decide hey why shouldn't you pay for what I got free in the understanding i got them for nothing to save them for others to have freely. Sorry then. Sometimes with your sense of humor it's hard to tell. (But I do enjoy your shenanigans.) The original article at http://ascii.textfiles.com/archives/4683 is now 'bandwidth exceeded'. But it was saved today and available at archive.org: https://web.archive.org/web/20150815114528/http://ascii.textfiles.com/archi… (with pics) There's also "full photos from today?s shoot" here: https://www.flickr.com/photos/textfiles/sets/72157657277241785 Incidentally, that info about 'lease expired, can't justify cost of relocating' is a teeny bit suspect. That's not what I recall Becky saying in email to me early this year. I'll see if I can find that. --------------------------- http://www.eevblog.com/forum/chat/rescue-mission-25-000-manuals-baltimore/m… Re: Rescue mission - 25,000 manuals, Baltimore ? Reply #16 on: August 16, 2015, 01:29:03 pm ? Quote from: eas on August 16, 2015, 01:01:47 pm Sounds like the Jason Scott already has some connection with Archive.org. The short term issue is sorting, hauling everything off and storing it until they can come up with a plan for archiving it. What sorting? It's already neatly sorted and indexed. The hard part would be preserving that during a move. Anyone in the US able to think of a way someone could put a legal hold on the destruction? Quote As for burning libraries, I think someone else started doing that about, oh 2000 years ago? Oh yes, there's a long tradition of barbarism regarding libraries, much further back even than 2000 years. It's just lately there seems to be a new style. No flames and swords, same end result. I can't mention by whom and why here. But you can probably find out what I mean via google. Incidentally it's a practice I've seen with my own eyes, being done by the specific group (who we can't mention.) The whole "who needs physical books, digital copies are all we need" bullshit meme seems to go hand in hand with the stealth barbarism. But there's a very sound reason why paper copies are superior in a critical way, that overrides all other considerations - You can't expunge/corrupt/rewrite them. Either by accident ( see http://everist.org/NobLog/20131122_an_actual_knob.htm#jbig2 re JBIG2 faulty compression ), or deliberately - say hypothetically some group were intent on obliterating the technological heritage of Western Civilization. Quote I really hope they are checking printings/dates/revisions when eliminating "duplicates." I would bet money that isn't happening. (Ha ha, if I had any. But then, I'm certain I'd win the bet, so...) ------------------------ http://www.eevblog.com/forum/chat/rescue-mission-25-000-manuals-baltimore/m… Re: Rescue mission - 25,000 manuals, Baltimore ? Reply #24 on: August 17, 2015, 12:18:50 am ? Quote from: nctnico on August 16, 2015, 05:51:30 pm Yes. I think I bought a couple of manuals from them in the past. You can argue all you want but running a business requires paying customers. Paying customers requires offering a service which customers would pay money for. Going out of business means there are not enough paying customers which in turn means the service provided is no longer wanted. You keep assuming they are 'going out of business due to lack of sales'. That's not the case at all. The article states it's due to loss of the lease, and not being able to justify the cost of relocating. I know from conversations with Becky (the sole staff) that she was always working non-stop. And I'm not sure about that lease stuff. So far I can't find the emails, but I'm pretty sure she said it was just the owner deciding to shut down. A decision made in Dec 2014 or earlier. Then the failure to advertise over the last 8 months to see if they could get any takers for the entire collection, so now they would dumptser them, that's barely believable. Quote I also agree with the other person about not being able to browse through their collection. That made Manualsplus invisible to Google. If they addressed that earlier they could probably have survived an extra couple of years. Yes, I agree the website was bad. More incompetence from the owner. But again, it wasn't 'lack of business' according to them. It was loss of the lease. Quote from: timb on August 16, 2015, 10:42:15 pm I'm only a couple of hours from Maryland. I've got access to a 42' flatbed and copious amounts of climate controlled storage. I'd be glad to take all the manuals off their hands (and scan them as a long term project). Well, here are their contact details again. Manuals Plus. 2002 Bethel Rd, Suite 105 Finksberg, MD. Phone 410-871-1555. Fax 410-871-1255 em: sales at manualsplus.com web: www.manualsplus.com Google maps: https://www.google.com/maps/place/2002+Bethel+Rd+%23105,+Finksburg,+MD+2104… Please phone them. Now. Also contact Jason Scott and work out some cooperation with him. Main thing would be to stop them dumping manuals off the shelves till you have time to work out how to move them while maintaining sort order. Also they will have an index and ordering system on computer - you'll need that too. See if you can find out who the building owner is, and talk to them. Are they _really_ terminating the lease? Maybe that story is true, maybe it isn't. Would be good to know for sure. As opposed to, say Tektronix or Agilent/Siglint or whatever they call themselves now, passing someone a few thousand bucks to eliminate a library of manuals, thinking they might sell a few more new instruments if manuals for older gear are unavailable. Just a thought. ----------------------------- http://www.eevblog.com/forum/chat/rescue-mission-25-000-manuals-baltimore/m… Re: Rescue mission - 25,000 manuals, Baltimore ? Reply #27 on: August 17, 2015, 12:15:55 pm ? Quote from: woodchips on August 17, 2015, 04:21:30 am I know nothing about the ins and outs of why they are closing. I have been an occasional customer over the years but postage to the UK isn't cheap. I heard about the closure and hopefully in the next week or so will arrive boxes 5 and 6 of the sale manuals. I think I might now have spent more on postage than manuals with the discount on these last boxes. Thanks Becky. I've been a long term customer too. Also bought what I could afford after hearing of the shutdown. But it wasn't anything like what I wanted to buy. I'm poor atm, though that won't last forever. Quote Look at the various threads, buy a Rigol and stuff anything more than 5 years old? My manuals were mostly boring, Tek 7000 stuff and similar, but ManualsPlus had originals, and I an tired of rubbish copies and it was worth the cost to buy and ship them across the pond. My view is that at least some people should keep test gear that is repairable, as opposed to contemporary gear which isn't. As a 'just in case' precaution, for potential economic and therefore technological regression scenarios. Also as a collector of old gear partly for the historical interest, it seems stupid to have the gear, but not the original manual, which is part of the aesthetic. And in addition, I find electronic copies pathetic and nearly unusable in a practical sense, even if the quality is good. Which it so frequently isn't. Nothing beats having the stack of paper large foldout schematics. Quote This is a very common occurance now in my experience, no one is interested in older things, generally, it is all apparently on the internet. Yes, and do you know the history of fads and manias? Who can be sure the Internet is going to last forever in its current form? It's only been around what, 20 years so far. This is not sufficient basis to predict eternal availability. Are you aware of moves by the fascists in the US government, to legislate 'sharing of technical information on the net' into a 'terrorist crime'? Seriously... Unbelievable, but it fits with those arseholes' mentalities. Quote I had a nice collection of electromechanical computers, mostly navigation equipment from aircraft, inertial gyros, air data computers, ground position indicators and similar. When I had to downsize it went for auction, would have got more at a scrap yard. Tragic. Did you offer it via places like this and the vintage computing forums? Or was that before you knew of them? Quote Similarly old books, 3rd edition Britannica, a Pantologia, runs of the AJS and similar, these are now valued just for the plates they contain, maps are best, the plate of yet another bridge is used to light the fire. It has taken me years to to actually accept that the things I spent so much time and money on acquiring are now worthless. You're making a big mistake. The same made by many people, which results in relics being so very rare after a few decades. You're allowing yourself to be conditioned by the prevailing view that monetary value of the moment, is equivalent to moral worth. This is a falsehood. You should decide what value is, within your own moral code. F*ck opinions of others to the contrary. Quote I have ST412 working disc drives, no interest, scrapped, similarly with much other computer stuff. No one now has the space to store this stuff, and museums don't seem interested either. Sob. More tragedy. I'd have taken all that stuff. Incidentally, this 'no one has the space' is not just by accident, it's the result of deliberate social manipulation, intended to disempower the majority of the population. A deliberate side effect of the way the economic system is structured at the moment. Quote I am pleased that I bought the manuals I did from MP, and they will be used and appreciated. But they will also go for recycling when I die. How soon will that be do you think? Any chance you could put me down in your will, to take whatever techno-relics you still have? I'm totally serious, please PM me if you'll consider it. I'm 60 now, will be around a while yet. See http://everist.org/NobLog/ I have a lot of Tek 7000 series stuff, but mostly not yet recommissioned due to the sequencing of getting my workshop set up. Quote what is a 7T11? In the end I had a choice, pay MP for the manuals and postage, or keep that money in my savings account. All the others who complain about the manuals being dumped perhaps should have put some money where their mouth is, and bought a couple of thousand $ worth when they could. I did. So did I, but it wasn't anywhere near that much. The timing is what bugs me. In the next year or so, I'll likely be forced to sell my current large property due to a zoning change. (http://everist.org/no-rezone/ hmmm... needs an update.) I expect to end up with more than enough to rebuild in the country somewhere, including a *much bigger* workshop, and live comfortably. One of the items on my 'new workspace' requirements list, is a _large_ library space. Medium scale library. I wish MP had waited to shut down till that was set up. --------------------------------- http://www.eevblog.com/forum/chat/rescue-mission-25-000-manuals-baltimore/m… Re: Rescue mission - 25,000 manuals, Baltimore ? Reply #36 on: August 18, 2015, 05:37:05 pm ? Quote from: Tothwolf on August 18, 2015, 11:14:25 am Quote from: TerraHertz on August 16, 2015, 01:29:03 pm Quote I really hope they are checking printings/dates/revisions when eliminating "duplicates." I would bet money that isn't happening. (Ha ha, if I had any. But then, I'm certain I'd win the bet, so...) You guys need to watch what you say. Becky is aware of this thread and had been following it. As for duplicate sorting, according to Becky, Jason and others have been hard at work. Hi Becky! (Guy D from Sydney here.) I still bet 'duplicate culling' (not sorting, they are ALREADY sorted) isn't happening in any adequate sense. Revision and serial number comparison is *hard* and there's no way it could be done for that archive in the time available. Especially not while also maintaining overall sort order and catalog to shelf grid references. Also even if it was, it's still a tragedy, since the purpose of the the 'save & move' would ideally be to keep the manuals in this collection available for future purchasers. Which I don't expect will be possible, and that makes me feel ill. Both on principle and because it makes my future equipment life harder. It's like watching a priceless library burn, and nothing I can do about it. Feel like I want to kill someone. Not Becky or the volunteers! Three cheers for their effort. The owner, maybe, depending on what the actual situation is. How come this got left to the last minute? Or perhaps the building owner. Or maybe a bunch of bankers, for creating a debt-riddled system in which a business like ManualsPlus can't own its own premises clear of debt, and have no overheads beyond water, power and maybe land rates. There seems to be a lot of 'save only one copy of each for scanning' attitude going on here. You can guess what I think of that. Current scanning and encoding file formats are NOT ADEQUATE! There'll be better schemes in future, but till then save all the physical copies, in as many hands as possible to prevent this kind of mass loss. But, since I can't help or influence in any way, who cares what I think. Quote towards their USD $10,000 a month building lease. I still wish it was possible to do some checking of background details to this. Is "$10K/month" for that not particularly big space in an old subdivided factory in semi-rural area sensible? I don't know, but it does seem a bit hard to believe. Did the lease actually 'get lost'? How & why, given there's not exactly a huge swell in demand for industrial real estate in the USA these days. Who owns the building, and what's their story? I know I'll never see answers to these questions, which makes me feel even more ill about the whole thing, ------------------------------- 20150902 http://www.eevblog.com/forum/chat/whats-your-work-benchlab-look-like-post-s… My comments re destruction of ManualsPlus Re: Whats your Work-Bench/lab look like? Post some pictures of your Lab. Quote from: Rupunzell on September 02, 2015, 03:54:47 pm That file cabinet of service manuals and the other over stuffed book shelf of data books are going no where. These are valuable archives of not only devices from years gone by, they are part of the history of science and technology. There are data books going back to the early 1970's and to the time when semi companies mostly stopped publishing them. Each year at work, there would be a boxes of new data books that would appear. Some would stay at work, some followed me home. Service manuals would appear at the swap and lease where, they would not sell for much at all and often service manuals would appear by the box full and the seller insisted on the buyer taking the entire box, not just one. There are a number of independent cal labs in and near SV that have very extensive libraries of service manuals. They offer paper copies upon request with a modest fee. Photocopies, you mean. Which may be 'usable', but are worthless in the historical sense. Nothing beats having an original. Quote Many of the more popular instruments from that era can be found on the web, but not any where near all that was available from that time. Much the same applies to semiconductor and numerous other electronics devices. This is why I have kept these vintage data books and catalogs as more often than not, this information can be so very valuable. Tell me about it. From my own experiences of acquiring old gear then trying to find adequate manuals, I know very well how spotty the online archives are. (And much of what there is, are appallingly bad quality.) Also electronics data books - this is one area in which the 'it's all online, so just dumpster your physical books' delusion is particularly active. Maybe half my library of data books are from people I knew who decided to toss theirs. I'll NEVER dump mine. They're easier to read than PDFs, you get reminded of other chips, the books are complete with lots of related stuff, and many other reasons why they are superior. Quote There is SO much that can be learned from those hewlett packard, Tektronix, Systron Donner, Gigatronics, Fluke and many other's service manuals that is not often appreciated. Some of the very best circuit and systems designers I know spent years of their youth studying what was in these service manuals and learning what made these instruments work and why. Two of well known individuals who spent a LOT of time studying these service manuals and tinkering with test gear from this era are Jim Williams & Bob Dobkin. Stories of other with a similar history can be found on the Analog footsteps blog page: http://analogfootsteps.blogspot.com/search/label/Bob%20Dobkin This is the prime reason why there are often post form me about saving and repairing instrumentation from this golden era. There is a LOT more than just the math to fully understanding how a circuit and it's environment behaves as a unit system. Spending time with these instruments can be an excellent teaching and learning experience. Yes indeed, I see you are a man after my own heart. I also have the view that these works are not just a history, but a critical resource should there be any kind of civilization glitch. Most people believe such ideas are silly, but that is just a bad case of normalcy bias. I know from my study of human history (and academic studies like Tainter's 'The collapse of complex societies') that such collapses are the norm in the human story, not the exception. Good luck using 'online pdfs' after a decade or two (or 20, or 100) of no power, fuel or technical education system. A great deal of the technical foundation of our society has zero adequately preserved 'seed bank of knowledge.' Those service manuals from the 60s through early 90s (before the lawyers and bean counters put a stop to that) are a unique treasure, in the way they detail everything about how the instruments worked. And on paper, that can last hundreds of years if simply kept dry and safe from the elements. Which doesn't require high tech efforts, unlike say maintaining a bank of hard disks and their regular replacement. Also, and this is very important - ink on paper can't be edited and deliberately corrupted or expunged. If it's there, it's original and true. Something that can't be relied on with digital copies. If you think deliberate 'historical revision' doesn't happen with digital media, you are not paying attention. It happens all the time with film and music for instance. For those who were wondering why I was spitting mad about ManualsPlus being trashed, this is why. I consider that event a kind of vandalism against the foundations of civilization itself. And no, 'saving one copy of each in rented storage', while slightly better than nothing, isn't good enough. I really do think some people should be shot for the destruction of that library. Not the victims, like Becky, or the people who tried hard and did what they could with inadequate resources. But definitely the business owner, for either incompetence or deliberate acts resulting in the destruction. Ah well. Centralization of anything is bad, since it exposes the thing to infiltration of control by those who would destroy it. In a hundred years, it's going to be printed collections of knowledge kept safe privately by people like Rupunzell that will have made a difference. Too bad there are so few who see the value. But I suppose that is the usual way by which things once relatively common become extremely rare (or completely lost) over time. ------------------------

7 years, 2 months

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BIG ol tektronix scope 555 - need it gone - make an offer

by guykd＠optusnet.com.au

At 08:34 AM 11/12/2018 -0800, Marc wrote: >That's a beautiful old scope setup. I have a friend who collects this >stuff but he is very low budget and on the opposite side of the country >like me. Heh. How about 'no budget, and opposite side of the world'? Do I win?

7 years, 2 months

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Genrad 2511 Vibration Control System

by aek＠bitsavers.org

bought this on eBay suspecting it was LSI-11 based because of the floppies labeled DY: https://www.ebay.com/itm//192437124163 It's kinda neat, has a very late (1989) AED WINC-05 disk controller in it, 11/73 and a bunch of custom daq boards. It also has a Dilog Qbus to Unibus converter (didn't even know they made one) and it appears all the custom boards are on the Unibus. I doubt I'll ever find docs for it though.

7 years, 2 months

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anyone seen this 11/70 panel on epay?

by tdk.knight＠gmail.com

iust noticed this apear on ebay if anyones looking for a 11/70 front panel https://www.ebay.ca/itm/Vintage-DEC-PDP-11-70-DataSystem-570-Computer-Front…

7 years, 2 months

1
0
0 0

BIG ol tektronix scope 555 - need it gone - make an offer

by lyokoboy0＠gmail.com

More of a computer list I know, but I need to clean out and this needs to go soon. Big ol tektronix scope on a cart. Was part of a community workshop, i cleared out all their equipment and have not had the time to repair it. I was planning to go over it and put it to work at my desk, but i decided to get a bigger desk and don't have the space for it. i picked up a hp logic analyzer that fits on the desk, and is more than capable for working on my pdp 11 and other minicomputer stuff. open to offers, come pick it up and its yours. https://i.postimg.cc/NFPC5cDG/scope-555.jpg located in Melbourne FL --Devin D.

7 years, 2 months

6
9
0 0

cctalk Digest, Vol 51, Issue 10

by technoid6502＠gmail.com

Yes. Sunos 5.4, Solaris 2.4. I got and installed Solaris 2.6 to replace that, iirc. I also ran Netbsd and OpenBsd on that machine, preferring OpenBSD, iirc the video drivers worked best on the frambuffer I had which was the base model color board. This all happened in the year 2000 or thereabouts. Jeff

7 years, 2 months

1
0
0 0

GCC for pdp11

by paulkoning＠comcast.net

Gentlepeople, Once in a while people ask about GCC. It has long had pdp11 support, but it hasn't received much attention. Recently I've done some cleanup on it, and some more is in the pipeline. One notable new feature is that it can now produce proper DEC Macro-11 syntax output. It has long had a -mdec-asm switch, but that used to produce GNU output. Now it produces DEC output (and -mgnu-asm is how you get output for "gas".) The optimizer is better, and a bunch of compiler failures are fixed. Undoubtedly there are more bugs to be worked on. Oh yes, for grins I told GCC to build not just a C compiler but a C++ and Fortran compiler as well. That seems to work (but I get an error building the libstdc++ library). I now have C++ translations of the RSTS standard header files common.mac and kernel.mac, and the DECnet definitions in netdef.sml. :-) If anyone wants to give this a try, the best way is to get the current code via Subversion (see gcc.gnu.org for details). Alternatively, get a weekly snapshot; the DEC support is in the current latest, though some optimizer work will appear in the next one. paul

7 years, 2 months

6
7
0 0

Documation TM200 card reader - pinch roller restoration

by guykd＠optusnet.com.au

A quick update. Thanks to those who sent pics of intact rollers. Derived from those the correct pinch roller diameter is 27.20 mm. Notes here: http://everist.org/NobLog/20180922_data_in_holes.htm#rub It seems there's a few people who need new M200 rollers. Once/if I perfect a successful method of making replacements I'll offer them for postage and a few dollars. But I'm in Australia. Or, there's this guy in the USA: http://www.terrysrubberrollers.com/ Now the correct OD is known he's an alternative, with real rubber. (Maybe my end result will be rubber too. That remains to be seen.) I still haven't found a service manual for the TM200 (with schematics.) Guy

7 years, 2 months

3
2
0 0

Seeking info for Cardamation parallel-serial board for card reader

by ethan.dicks＠gmail.com

I have finally begun working with the card reader I picked up at a VCF some years back. Mechanically, it's sound, and the rollers are adequate for short term use (on the top, one is firm and in good shape, the other is starting the slide to goo but is working well enough for short-term testing). Mine came with a Cardamation-badged microprocessor board inside that's a serial converter and so far, I'm not getting any bits out of it. I am fairly certain that the product I have was sold as a Cardamation CF-600 based on pictures and speed. I found this on the Wayback Machine: https://web.archive.org/web/20111003183529/http://www.cardamation.com/cardr… The board in question has a 6802 processor, two 6821 PIA chips for the parallel interface, an EPROM, 1K of 2114 SRAM, an 8250 UART, and some misc parts for an RS-232 level shifter. Looking at the DB25F, there are no bits coming out of pin 2 or pin 3. I have yet to sit down and trace signals all the way back, but it may come to that. To assist my probings, while I can reverse-engineer the schematic, locating any docs would speed up this process greatly. On the board, there are markings that indicate it's a "Cardamation Feature 92 Rev 4 Assy No 023.0096-9". The EPROM has a paper label indicating that it's programmed with "V793NE76" whatever that means (likely the variations are largely centered around what EBCDIC-to-ASCII mapping was required). I will be dumping the EPROM to ensure it has sensible contents. Additionally, I'm always suspicious of 2114 SRAMs. They fail while sitting on the shelf. Fortunately everything is socketed, so even if it's an EIA line driver or a PIA or UART or even the CPU, replacement is trivial. There are no unobtanium parts on this outside of the programming of the EPROM. Absolutely worse case, I remove this serial interface and build my own with a modern MCU (I believe Kyle Owen has recently done this). If this was 10 years ago, I'd probably start with Cardamation to ask if they still had any docs on this stuff. I'm reading they closed up shop in 2011 so that's not an option. Digging around for old Cardamation articles in trade rags, I see one of their 300 card-per-minute units spewing the data at 19.2Kbps (I did try that speed, along with 38.4Kbps). I think the minimum speed is going to be 9600 bps, but as I'm not seeing any bits on an oscilliscope, I'm sure it's not the settings on the receive side (yet). -ethan

7 years, 2 months

1
0
0 0

PDP-8/e rebuild - update.

by rodsmallwood52＠btinternet.com

Went to toggle in the RIM loader ? huh ! Memory address 04 stuck low. So either try another 4k core (after changing the jumpers) or... Trace the signal path. What do we think? Rod Sent from Mail for Windows 10

7 years, 2 months

1
0
0 0

chasing down an old game

by iain＠csp-partnership.co.uk

Many many years ago in a distant galaxy (called Strathclyde University Computer Science) we ran a game on the PDPs. It was great at testing out terminal line speed handing and debugging curses (well that is what we told the bosses). I remember the game as being called ?search?. But since we had the source code it could have been anything. It was played on 24 x 80 dumb terminals. It was multi user. In the game you moved around the universe in your craft - the display was a kind of 3-D picture (you got closer to a plant and the planet got bigger - try drawing increasing circles on a 24x80!). You could travel through the universe shooting other craft (friend of foe). The only craft name I think I remember is ?shankers? - becuase we had source a lot of the craft names turned into locally relevant names. You could team up with other players and (1 line) communication with a group or with that player. I have searched (on and off) for the game. I cant find anything like it. I would like it to test out the DZ cards on my PDP! - OK that is my excuse ;-) Is anybody aware of what I am talking about? Does anyone have any old code anywhere? Aye, it was not as good as the old GT40 - but it was a different era.

7 years, 2 months

3
2
0 0

Interesting RK8E fault

by derschjo＠gmail.com

Hi all -- Finally got all the parts together (and my act together) to actually get an RK05 lashed up to my PDP-8/e -- only took a decade or so :). I fixed a few problems with the RK05 and it appears to be behaving very nicely. The RK8E controller is mostly working properly but fails interestingly when running the formatter, and during the exerciser -- on cylinder 128 and 192 and very infrequently on cylinder 64 it will get a cylinder mismatch when doing the seek. When running the formatter during the verification pass, on cyls 64 and 128 if I retry the read it'll continue without issues, but it's never successful on a retry on cylinder 192. I tried hooking it to the RK05 in my 11/40 and it exhibits the same behavior, so I'm guessing the drive isn't at fault. And the error is consistent across packs (of which I have only two). Apart from that fault the drive and controller seem to work fine -- I wrote out an OS/8 pack with Adventure on it (or at least the first 191 cylinders of it) and it works without issue. Reading the RK8E service docs and schematics, the cylinder address compare is done by reusing the CRC buffer, so I suspect the issue is in or around there -- the big problem is that debugging it is rather painful since that logic is in the middle board of a three board set, with jumper blocks on top -- so bringing it out on an extender isn't an option. I'm curious if anyone's seen this issue or is so very familiar with the logic that the fault is obvious. I suspected the 7496 shift register at E14 which takes in the cylinder address to be compared w/the header on disk, and I went ahead and replaced it in the hopes that I'd get lucky, but no go. Anyone have any advice? Thanks, Josh

7 years, 2 months

5
11
0 0

DECUS PDP-11 SPACE WAR?

by mattislind＠gmail.com

Anyone has old DECUS distributions? I am looking for the PDP-11 SPACE WAR program. It is supposed to be 11-192, written by William (Bill) Seilier and Lawrence (Larry) Bryant in 1974. https://i.imgur.com/rjaWX4X.png It is a space war like program for the PDP-11/10 with AA11 and AD01. Much later Bill rewrote it in C for the MSP430: http://processors.wiki.ti.com/images/tmp/f1276339401-2015330541.html https://github.com/dlitz/openmsp430/blob/master/fpga/actel_m1a3pl_dev_kit/s… But where is the original PAL-11 source? Anyone?

7 years, 2 months

12
34
0 0

SUN SPARC station ELC

by guykd＠optusnet.com.au

Checking out a SUN SPARC station ELC tonight. It powers up, passes self test. Boot fails because the CMOS RAM battery is dead, so it's lost boot config. That's no problem, it's an ST MK48T02B-25 'TIMEKEEPER RAM' 2K x 8, which is still available. Or I'll probably just cut open the tophat and connect a new battery. Then RTFM to find how to tell it to boot from external SCSI device 3. By extreme good fortune this machine came with a complete set of manuals. The main problem is the video monitor worked for a few minutes, then dropped to about half brightness - and since then is randomly varying in brightness. Before I open it up and start connector wiggling and hunting bad caps, dry joints and so one, does anyone know if schematics for the monitor exist online? Guy

7 years, 2 months

2
1
0 0

Opening RL02 disk pack

by jnc＠mercury.lcs.mit.edu

> From>: Christian Corti > I thought that the DEC packs would be similar but no, DEC had to invent > something different... Huh? I thought RL0x drives use an IBM 5440 type pack (as used on the IBM System/3 - I used one of those at my first computer job, they'd just gotten it in); DEC may have used their own format (and servo track stuff), I don't know much about the 5440. Noel

7 years, 2 months

4
3
0 0

Hemp Oil Gummies That Improve Cardiovascular Health

by cctalk＠gtaylor.tnetconsulting.net

On 12/8/18 4:43 PM, Michael Mulhern wrote: > We are the spambot challenge? Something like that. -- Grant. . . . unix || die

7 years, 2 months

5
9
0 0

seagate 801-> Q-bus interface

by useddec＠gmail.com

Does anyone know who made a controller for a Seagate 800 or 801 floppy that will plug into the Q-bus? Model numbers wound be nice to. Thanks, Paul

7 years, 2 months

3
2
0 0

Hemp Oil Gummies That Improve Cardiovascular Health

by cisin＠xenosoft.com

WOW! That is the first TRULY obviously and unarguably spam post that I've seen make it past the cctech moderation! On Sat, 8 Dec 2018, HempOil via cctech wrote: > Hemp Oil Gummies That Improve Cardiovascular Health > http://www.tedsplansmart.review/12706-954-1315-7688394/classiccmp/tindex9.h… > > Unsubscribe Here > > http://www.tedsplansmart.review/12706-954-1315-7688394/classiccmp/rindex10.…

7 years, 2 months

2
3
0 0

IBM SMS Data Capture - IBM 1410 update

by jnc＠mercury.lcs.mit.edu

> From: Jay Jaeger > I have finished the 3rd phase of my IBM 1410 SMS computer > reverse-engineering project. ... The ALDs comprise 752 pages from 9 of > the 11 total volumes of system schematics/engineering drawings ... It > took me roughly 375 hours of time (probably more like 450 - not all time > was captured) to capture the data into a database Wow. I am super impressed. My hat is off... Fantastic job! Noel

7 years, 2 months

1
0
0 0

PDP-8/e

by johannesthelen＠hotmail.com

I have used Access Port on Win. Lot easier than TeraTerm and also supports 110 Baud. http://www.sudt.com/en/index.html [http://www.sudt.com/images/sn_en_230x160.gif1zB]<http://www.sudt.com/en/index.html> SUDT.com<http://www.sudt.com/en/index.html> SUDT SerialNull 1.7: SerialNull is a professional Serial Port Simulator, which purpose is to emulate RS232 serial ports connected via virtual null-modem cable using SerialNull.. Virtual Serial Ports are absolutely the same copies of real ones; Real serial ports are not occupied www.sudt.com - Johannes Thelen Finland Before microcomputers blog (Finnish) http://ennenmikrotietokoneita.blogspot.fi/ ________________________________ From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Rod G8DGR via cctalk <cctalk at classiccmp.org> Sent: Friday, December 7, 2018 11:59 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: PDP-8/e Hi All Seasons Greetings.. My PDP-8/e was long due for a major overhaul. 1. So everything out 2. Big Hoover job on the Omnibus 3. Bring up on Variac ? No smoke 4. Check PSU volts. ? All OK 5. Power off 6. Install minimal System ? Front Panel, Three CPU cards, RFI shield, 4k Core and Bus term. 7. Yup all looks in right order 8. Power on 9. Toggle in standard AC count up program 10. Clear + Cont 11. And they are racing at Rockingham!! 12. Yup counts up just like it should. 13. Let it run for a while. 14. All stop. 15. PSU off 16. Inset Async Card (Its 110 baud only) 17. Fire up VT100. Beep - yup its alive. 18. Toggle in keyboard echo test. 19. Clear + Cont ? Program runs 20. And .. yes keyboard gets echoed back. OK now I need a little help. Does anybody know of a terminal emulation program that will simulate the reader on an ASR33? I know about RIM and BIN loaders but how and what to feed them I have long forgotten My PDP-8 course completion certificate is dated November 1975. Rod Smallwood Sent from Mail for Windows 10

7 years, 2 months

1
0
0 0

PDP-8/e

by pete＠dunnington.plus.com

On 07/12/2018 09:59, Rod G8DGR via cctalk wrote: > OK now I need a little help. > Does anybody know of a terminal emulation program that will simulate the reader on an ASR33? > I know about RIM and BIN loaders but how and what to feed them I have long forgotten For a Unix or Linux machine, there's send and rsend, and several other utilities, that you can find at Kevin McQuiggin's web page: http://highgate.comm.sfu.ca/pdp8/ and on mine: http://www.dunnington.info/public/PDP-8/ -- Pete Pete Turnbull

7 years, 2 months

7
10
0 0

IBM SMS Data Capture - IBM 1410 update

by cube1＠charter.net

I have finished the 3rd phase of my IBM 1410 SMS computer reverse-engineering project. The first phase was writing a software machine-cycle simulator - almost 20 years ago, in part to verify I had usable software. The 2nd phase was writing code and setting up a database to do the 3rd phase - capturing data from IBM Automated Logic Diagrams (ALDs). The ALDs comprise 752 pages from 9 of the 11 total volumes of system schematics/engineering drawings, volumes II-X. (Volume I is the power supply and volume XI is additional memory). It took me roughly 375 hours of time (probably more like 450 - not all time was captured) to capture the data into a database that contains 10,565 ALD logic blocks, 1281 "DOT functions" where outputs of gates joined as a "Wired OR", with 4222 distinct signal names appearing as 12,398 entries on the 752 pages, and over 32,700 individual connections. The sheets (as reprints from scanned originals) stacked up are 2" high. The second photo is one of them (with marks I made during data capture) is pictured here. The third photo is a screenshot of that page in the application I developed. (The numbers at the bottom, which do not appear on the original sheet, are a gate number on a given SMS card, the number of inputs to that block, and the number of outputs from the block. The little "A" characters appearing between columns represent "DOT functions." I ran a regression in Excel to estimate the time for capturing a given sheet, which ended up as: Time (in minutes per page) = -7.1 + 1.00 * # ALD blocks on the page (the rectangles) + 0.50 * distinct signals coming from / going to other sheet(s) + 2.24 * # "DOT Functions" on the page + 0.15 * # of connections to/from ALD blocks on the page + 0.39 * # of edge connection locations (at the bottom) Most of the residuals - the difference between the actual value recorded and what the equation would calculate - were under 25%. The "DOT Function" coefficient is probably correlated to the overall complexity of the page - "DOT Functions" themselves were easy to enter. The next step is to clean up some things in the application and tune the database to perform better, at which point I expect to make the application available via some online GIT repository so it can be used for other SMS machines (IBM 1620, IBM 1401, IBM 7000 series and the like). Then it will be on to synthesis of sections of the machine (CPU, memory, console) for which I have drawings and some kind of stand-in for parts I don't have drawings for (1414 I/O Synchronizers, tape drives, etc.). The photos referenced can be found at the public facebook post at: https://www.facebook.com/jay.jaeger.3/posts/2100428726685075

7 years, 2 months

2
1
0 0

PDP-8/e

by derschjo＠gmail.com

On Sat, Dec 8, 2018 at 1:55 AM Rod G8DGR <rodsmallwood52 at btinternet.com> wrote: > Nice try Josh - close ? you have to change the crystal first and you > can?t get them. > https://www.mouser.com/ProductDetail/ABRACON/AB-196608MHZ-B2?qs=sGAEpiMZZMu… > > > Rod Smallwood - Digital Equipment Corporation 1975 ? 1985 > > > > > > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for > Windows 10 > > > > *From: *Josh Dersch via cctalk <cctalk at classiccmp.org> > *Sent: *08 December 2018 06:36 > *To: *General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > *Subject: *Re: PDP-8/e > > > > On Fri, Dec 7, 2018 at 10:29 PM Rod G8DGR via cctalk < > cctalk at classiccmp.org> > > wrote: > > > > > It can only do 110 baud !! > > > > > > > Unless you have an oddball SLU, this is not true -- what do you have > > installed? The earlier M8650 and the later M8655 can both be jumpered for > > higher baud rates. > > > > - Josh > > > > > > > > > > > > Sent from Mail for Windows 10 > > > > > > From: Pete Turnbull via cctalk > > > Sent: 08 December 2018 03:15 > > > To: cctalk at classiccmp.org > > > Subject: Re: PDP-8/e > > > > > > On 07/12/2018 17:46, Jon Elson via cctalk wrote: > > > > On 12/07/2018 11:38 AM, Rod G8DGR via cctalk wrote: > > > >> Oh good how do you set them to 110 baud? > > > >> > > > > Oh, WOW! Good catch, it only goes down to 300 baud! major screwup, > > > > ought to be reported to the developers. > > > > > > But wouldn't it be better to set the serial card in the PDP-8/E to > > > something faster anyway? Although on one of the serial cards, that > > > requires a crystal change, so though commonly done, may not be practical > > > for Rod. > > > > > > -- > > > Pete > > > Pete Turnbull > > > > > > > > >

7 years, 2 months

1
0
0 0

PDP-8/e

by jnc＠mercury.lcs.mit.edu

> From: Jay Jaeger > That code would not run in Windows of course, but it wouldn't be all > that difficult for someone with a C programming background to move it > to Windows under gnucc, or even Microsoft C++ or C#. I highly recommend CygWin (which comes with 'gnucc) for doing C stuff under Windoze: https://www.cygwin.com/ Most Unix/Linux code just compiles and runs under it; modulo stuff that uses things that are so Unix/Linux specific that there's no Windows equivalent, but that's not much - fork() is even there. If you already know Unix/Linux, it makes for a very low-learning-curve transition. Noel

7 years, 2 months

1
0
0 0

PDP-8/e

by cube1＠charter.net

I did that sort of thing for my PDP-8/L, where the reader run drove the RS-232 "CTS" control signal and wrote a "C" program to do simple TTY emulation in DeSmet C back in the day. That code would not run in Windows of course, but it wouldn't be all that difficult for someone with a C programming background to move it to Windows under gnucc, or even Microsoft C++ or C#. On 12/8/2018 1:10 AM, Rod G8DGR via cctalk wrote: > I?m sure that would work but I only have an 8650 110 baud only card > Rod > > > Sent from Mail for Windows 110 baud > > From: Bob Rosenbloom via cctalk > Sent: 08 December 2018 03:41 > To: cctalk at classiccmp.org > Subject: Re: PDP-8/e > > On 12/7/2018 7:01 PM, Pete Turnbull via cctalk wrote: >> On 07/12/2018 17:44, Jon Elson via cctalk wrote: >>> On 12/07/2018 11:22 AM, systems_glitch via cctalk wrote: >>>> Indeed, unless you need character pacing. >>>> >>>> >>> Actually, with the correct settings of the serial port (xon/xoff or >>> CTS pin) the serial port driver should do this, too, so cat would work. >> >> A PDP-8/E doesn't have a CTS pin and the loaders don't support >> XON/XOFF, though. >> > The PDP-8 needs to control the serial CTS function. This was called > reader-run when using a Teletype machine. FOCAL won't load without it. > You can modify the serial card (mine was an M8655) to support the > function. Here's what I did: > > Cleaned up from Aaron Nabil's and Lyle Bickley's write up. > > ?Hack the M8655 to support reader-run by mapping it to RS-232 hardware > flow control. > > 1. Cut the trace leading from Pin 1 of E54 (a 7400).? This is the input > that clears the Reader Run FF when a new character starts to come in. > > 2. Jumper from Pin 1/E54 to Pin 3/E38, a spare gate on a 7400 that we > are going to use an inverter. > > 3. Tie Pin 1 and Pin 2 of E38 together, and run them to Pin 20 of E19, > the UART. > ??? This supplies the signal to the reader-run FF that tells it that > it's got an incoming character and to de-assert the reader-run line. > ??? Normally this is tied to the current loop receiver, we've just > moved it to the UART so any received data will clear the FF. > > 4. Cut a ground traces on 4 of E50, a 1488 RS-232 transmitter. This is > what would normally supply the continuously asserted RTS (and DTR) signal. > > 5. Jumper from pin 7 of E39, a 7474 flip-flop to pins 4 of E50. E39 is > the "reader-run flip-flop".? Now RTS follows the reader run signal. > > Bob >

7 years, 2 months

1
0
0 0

SunOS 2.4 Expliot (Re: Old Sparcstations

by technoid6502＠gmail.com

The Sparcstation 4/330 I reworked the NVRAM chip on.... I got it as-is from Computer Parts Barn in Asheville, NC. It was just round the corner from my home in Oakley.. The machine wouldn't start due to NVRAM, which I fixed. It then actually booted from the original drives, had an OS and data on it. My curiosity was piqued. This is what I did: I hung the drive on my PC running Linux (suse, iirc), and ran John the Ripper on it. I didn't get the root, but I got a user password. I hung the drive back on the Sparcstation and logged in as that user. The machine was being used to model the exhaust from various configurations of rocket nozzles. The previous owner turned out to be NASA at the Marshal Space Flight Center. I wanted root. I set out to abuse the OS, did quite a bit, had a hunch based on the experience while sussing the NVRAM problem. I set the date to 1970, booted, and logged in as the valid user I'd got from good old John. The machine bombed to a single user prompt with a kernel panic 'irrational date'. Passwd worked to change the root pw to something I knew. I went back into the monitor cli, changed the date to the real date, booted and logged in as root. The version of Sunos was 2.4? Just thought this might be helpful to someone. Jeff

7 years, 2 months

4
3
0 0

PDP-8/ update

by rodsmallwood52＠btinternet.com

Well I got there in the end. HyperTerm on an old DEC Celebris running W95 Thanks for all the input Now to move some diags. over and see if we can load them Rod Sent from Mail for Windows 10

7 years, 2 months

1
0
0 0

PDP-8/e

by pete＠dunnington.plus.com

On 08/12/2018 09:55, Rod G8DGR via cctalk wrote: > Nice try Josh - close ? you have to change the crystal first and you can?t get them. Both Farnell and Mouser UK have suitable crystals. They don't have to be the same physical size. I've changed several. -- Pete Pete Turnbull

7 years, 2 months

1
0
0 0

PDP-8/e

by aek＠bitsavers.org

On 12/8/18 1:55 AM, Rod G8DGR via cctalk wrote: > Nice try Josh - close ? you have to change the crystal first and you can?t get them. Dead bug a programmable epson ttl oscillator module, available from digikey

7 years, 2 months

1
0
0 0

PDP-8/e

by derschjo＠gmail.com

On Fri, Dec 7, 2018 at 10:29 PM Rod G8DGR via cctalk <cctalk at classiccmp.org> wrote: > It can only do 110 baud !! > Unless you have an oddball SLU, this is not true -- what do you have installed? The earlier M8650 and the later M8655 can both be jumpered for higher baud rates. - Josh > > Sent from Mail for Windows 10 > > From: Pete Turnbull via cctalk > Sent: 08 December 2018 03:15 > To: cctalk at classiccmp.org > Subject: Re: PDP-8/e > > On 07/12/2018 17:46, Jon Elson via cctalk wrote: > > On 12/07/2018 11:38 AM, Rod G8DGR via cctalk wrote: > >> Oh good how do you set them to 110 baud? > >> > > Oh, WOW! Good catch, it only goes down to 300 baud! major screwup, > > ought to be reported to the developers. > > But wouldn't it be better to set the serial card in the PDP-8/E to > something faster anyway? Although on one of the serial cards, that > requires a crystal change, so though commonly done, may not be practical > for Rod. > > -- > Pete > Pete Turnbull > >

7 years, 2 months

3
2
0 0

PDP-8/e

by derschjo＠gmail.com

On Fri, Dec 7, 2018 at 11:10 PM Rod G8DGR via cctalk <cctalk at classiccmp.org> wrote: > I?m sure that would work but I only have an 8650 110 baud only card > Rod > The M8650 does a wide variety of baud rates. See here: https://homepage.divms.uiowa.edu/~jones/pdp8/hard8e/kl8e.html - Josh > > > Sent from Mail for Windows 110 baud > > From: Bob Rosenbloom via cctalk > Sent: 08 December 2018 03:41 > To: cctalk at classiccmp.org > Subject: Re: PDP-8/e > > On 12/7/2018 7:01 PM, Pete Turnbull via cctalk wrote: > > On 07/12/2018 17:44, Jon Elson via cctalk wrote: > >> On 12/07/2018 11:22 AM, systems_glitch via cctalk wrote: > >>> Indeed, unless you need character pacing. > >>> > >>> > >> Actually, with the correct settings of the serial port (xon/xoff or > >> CTS pin) the serial port driver should do this, too, so cat would work. > > > > A PDP-8/E doesn't have a CTS pin and the loaders don't support > > XON/XOFF, though. > > > The PDP-8 needs to control the serial CTS function. This was called > reader-run when using a Teletype machine. FOCAL won't load without it. > You can modify the serial card (mine was an M8655) to support the > function. Here's what I did: > > Cleaned up from Aaron Nabil's and Lyle Bickley's write up. > > Hack the M8655 to support reader-run by mapping it to RS-232 hardware > flow control. > > 1. Cut the trace leading from Pin 1 of E54 (a 7400). This is the input > that clears the Reader Run FF when a new character starts to come in. > > 2. Jumper from Pin 1/E54 to Pin 3/E38, a spare gate on a 7400 that we > are going to use an inverter. > > 3. Tie Pin 1 and Pin 2 of E38 together, and run them to Pin 20 of E19, > the UART. > This supplies the signal to the reader-run FF that tells it that > it's got an incoming character and to de-assert the reader-run line. > Normally this is tied to the current loop receiver, we've just > moved it to the UART so any received data will clear the FF. > > 4. Cut a ground traces on 4 of E50, a 1488 RS-232 transmitter. This is > what would normally supply the continuously asserted RTS (and DTR) signal. > > 5. Jumper from pin 7 of E39, a 7474 flip-flop to pins 4 of E50. E39 is > the "reader-run flip-flop". Now RTS follows the reader run signal. > > Bob > > -- > Vintage computers and electronics > www.dvq.com > www.tekmuseum.com > www.decmuseum.org > > >

7 years, 2 months

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