- 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, 3 months

4
3
0 0

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, 3 months

7
11
0 0

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, 3 months

3
2
0 0

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, 3 months

10
15
0 0

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, 3 months

2
1
0 0

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, 3 months

1
0
0 0

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, 3 months

2
1
0 0

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, 3 months

5
5
0 0

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, 3 months

2
1
0 0

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, 3 months

1
0
0 0

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, 3 months

1
0
0 0

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, 3 months

2
1
0 0

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, 3 months

5
5
0 0

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, 4 months

2
1
0 0

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, 4 months

12
20
0 0

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, 4 months

1
0
0 0

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, 4 months

4
9
0 0

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, 4 months

2
1
0 0

◾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, 4 months

2
1
0 0

Sperry, Focus, IBM, and Chicony keyboards added

by sales＠elecplus.com

7 years, 4 months

1
0
0 0

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, 4 months

7
8
0 0

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, 4 months

17
28
0 0

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, 4 months

4
4
0 0

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, 4 months

1
0
0 0

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, 4 months

3
2
0 0

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, 4 months

1
0
0 0

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, 4 months

2
2
0 0

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, 4 months

1
0
0 0

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, 4 months

8
14
0 0

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, 4 months

1
0
0 0

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, 4 months

1
0
0 0

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, 4 months

5
5
0 0

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, 4 months

1
0
0 0

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, 4 months

4
3
0 0

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, 4 months

1
0
0 0

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, 4 months

1
0
0 0

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, 4 months

2
1
0 0

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, 4 months

1
0
0 0

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, 4 months

11
17
0 0

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, 4 months

11
15
0 0

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, 4 months

3
2
0 0

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, 4 months

1
0
0 0

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, 4 months

6
6
0 0

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, 4 months

7
9
0 0

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, 4 months

8
12
0 0

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, 4 months

1
1
0 0

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, 4 months

1
0
0 0

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, 4 months

3
2
0 0

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, 4 months

3
2
0 0

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, 4 months

1
0
0 0

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb