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

Pics of the industrial PDP stuff + unknown ones

by ethan.dicks＠gmail.com

On 11/16/09, John A. Dundas III <dundas at caltech.edu> wrote: > At 10:13 AM -0500 11/16/09, Ethan Dicks wrote: >>I am unfamiliar with the ACT name, but that's my opinion based on the >>board shape and chips present. > > ACT = Able Computer Technology, Able's formal name. Ah... well then... It's a very good chance it's this... http://www.able.com/qniverter.html -ethan

16 years, 8 months

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Intel 4004 complete schematics and simulator available

by dzubint＠vcn.bc.ca

(I just saw this as a story on Slashdot) The 4004 Schematics, Artwork, and Simulator at: http://www.4004.com/mcs4-masks-schematics-sim.html ----------- Thomas Dzubin

16 years, 8 months

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#2 Fw: RGB-to-VGA adapter & docs was: Re: HP "Field Guide" ?

by tanderberg_99＠yahoo.com

I did not tell you video card info. H freq = 63.35khZ and V = 60Hz fixed frequency. Thank you Chungduck Ko --- On Mon, 11/16/09, ck <tanderberg_99 at yahoo.com> wrote: > From: ck <tanderberg_99 at yahoo.com> > Subject: RGB-to-VGA adapter & docs was: Re: HP "Field Guide" ? > To: > Date: Monday, November 16, 2009, 12:03 PM > Hello Eric: > > I have been looking for RGB (BNC) to VGA converter.? I > also found Magenta Research is selling one at $695. I have > an old IBM RS6000 computer which used a fixed frequency > monitor with BNC RGB input. I would like to connect a modern > PC monitor. > > Would you think your circuit works for my case? If so, > could you send me the circuit? > Thank you > Chungduck Ko > > > > ? ? ? >

16 years, 8 months

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Motorola EXORset

by lynchaj＠yahoo.com

Hi! Does anyone have the schematics for the Motorola EXORset? If so, would you please either make a scan or look something up for me? I would like to know how the MC6840 PTM interfaces with the MC6809 CPU. Thanks and have a nice day! Andrew Lynch

16 years, 8 months

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Industrial PDP boards available

by quapla＠xs4all.nl

I have available a number of what looks like industrial PDP-11 stuff. These board do have a grey handle and are marked 'BH-xxx' instead of 'Mxxxx'. Several boards, single, dual, quad & hex ones. And also a backplane. If interested, let me know off list. Ed -- Certified : VCP 3.x, SCSI 3.x SCSA S10, SCNA S10

16 years, 8 months

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Parts bonanza

by snhirsch＠gmail.com

Anyone within driving distance of Windsor, VT might want to get in touch with Brad Thompson at WinCycle: wincycle at wincycle.org They are nominally a computer recycler who handle the usual castoffs, dead notebooks, off-lease PCs, etc, etc. Recently, a local landlord gave them the entire parts inventory of a local manufacturing company who went bankrupt and abandoned it. They made the entire thing available to local hams and hobbyists for free (or a small donation if you really felt guilty). We went down with a couple of storage tubs and filled them to the brim with tubes of unused 74-series and CD-series logic, machine-pin sockets and more resistors and caps than you could even imagine. All of this is pre-surface-mount through-hole componentry. An entire afternoon's picking didn't really make a visible dent - there's that much stuff. I would estimate many hundreds of tubes of chips and sockets and tens of thousands of caps, resistors and other small parts. I would suspect we were looking at > $100,000 worth of components at original cost. When we left, he mentioned that they might do this again next Saturday. At some point, I'm sure they will sell whatever remains to an industrial auctioneer or serious flea-marketer. So if interested, I would suggest moving quickly. Steve --

16 years, 8 months

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Shipping a Tek 'scope

by jules.richardson99＠gmail.com

I'm not reading here much at present, not until I eventually get all my collection moved, but I did just get offered a Tek 545A which is languishing in a garage down in Texas, so figured I'd ask about shipping it safely. Weight seems to be 65lbs according to the manual, but I've not poked any shipping companies yet to see how much it'll cost to get it up here to MN - perhaps it'll end up being just too costly on those grounds. Current owner's happy to pack it for me and drop it off to a shipping company (and apparently they have a Craters and Freighters about 5 miles away from them). Obviously styrofoam "poodle poop" is not a good idea - presumably a higher-density material of some kind would be good, and something that's not going to shift around too much. I wondered about some slabs of that styrofoam stuff they use as house insulation, cut to fit, but maybe that's *too* solid and won't absorb any impacts. Oh, and obviously something softer would be needed on an inner layer to protect all the controls at the front of the 'scope... Do people recommend pulling the tubes/valves and packing and shipping separately, or will they likely be OK in-situ? I'd be doing a strip-down of it anyway (it's not run in a couple of decades) - but with over 100 of them it's a lot of work for the current owner, plus I hate getting stuff already-dismantled and prefer making notes as I disassemble it myself. cheers Jules

16 years, 8 months

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DEC legacy event accounced in UK

by jgessling＠yahoo.com

>From comp.os.vms : http://wickensonline.co.uk/declegacy/ All I know is what I read on the web... Regards, Jim

16 years, 8 months

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Compupro and PET/UNITRON/TI etc. systems posted earlier

by dave09＠dunfield.com

Thanks to everyone who responded. I will be preparing a list of the responses received (in the order received) and forward them to the respective people with the systems, and they will take it from there. Sorry if my "contact me for more info" turned out to be misleading, I was hoping to have obtained permission to give out their contact info, however neither has responded yet, and apparently people from the list are getting impatient. At this point the best way for me to handle is to forward the messages I've received to the parties and let them handle it, as I have no further information to give out yet. Please stop sending emails asking if I've received your previous messages, if the systems are still available, or other questions - I know only what I posted. Thanks, Dave -- dave09 (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html

16 years, 8 months

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cctalk Digest, Vol 75, Issue 17

by ken＠seefried.com

way somewhere. > > You, sir, are blessed with being in the right part of the country to get > interesting gear cheap. The best I can hope for around here is old VCRs and > last year's Pentiums. And yes, I DO know how to find st Sent via BlackBerry by AT&T -----Original Message----- From: cctalk-request at classiccmp.org Date: Fri, 13 Nov 2009 12:00:02 To: <cctalk at classiccmp.org> Subject: cctalk Digest, Vol 75, Issue 17 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..." Today's Topics: 1. Re: Shipping a Tek 'scope (Peter C. Wallace) 2. Re: Shipping a Tek 'scope (William Donzelli) 3. Re: GRI (William Donzelli) 4. Re: Shipping a Tek 'scope (CRC) 5. Re: Shipping a Tek 'scope (Chuck Guzis) 6. Re: Shipping a Tek 'scope (Dave McGuire) 7. Re: GRI (Curt @ Atari Museum) 8. Re: apple documentary and huge apple collection (Brian Lanning) 9. Re: GRI (Chuck Guzis) 10. Re: GRI (Al Kossow) 11. Re: GRI (Al Kossow) 12. Re: GRI (William Donzelli) 13. Re: GRI (Curt @ Atari Museum) 14. Re: apple documentary and huge apple collection (Teo Zenios) 15. Re: Walkthrough of a small datacenter 1992 (jim s) 16. Compupro 8/16 system avail. in San Francisco Bay area (Dave Dunfield) 17. PET, Sinclair, Unitron (AppleII clone), TI-99/4As avail near Toronto. (Dave Dunfield) 18. Re: PET, Sinclair, Unitron (AppleII clone), TI-99/4As avail near Toronto. (Alexandre Souza) 19. Osborn 1 systems available in OR (shumaker at att.net) ---------------------------------------------------------------------- Message: 1 Date: Thu, 12 Nov 2009 15:57:44 -0800 (PST) From: "Peter C. Wallace" <pcw at mesanet.com> Subject: Re: Shipping a Tek 'scope To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <Pine.NEB.4.64.0911121548130.15267 at freeby.mesanet.com> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed On Thu, 12 Nov 2009, Dave McGuire wrote: > Date: Thu, 12 Nov 2009 18:46:34 -0500 > From: Dave McGuire <mcguire at neurotica.com> > Reply-To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > Subject: Re: Shipping a Tek 'scope > > On Nov 12, 2009, at 6:13 PM, William Donzelli wrote: >>> Umm the world is round. I suspect all the big cleaning of old stuff >>> was done about 10 to 15 years ago, with the advent of digital scopes. >> >> In the past six months, I have come across (in mostly different >> locations!) EIGHT different tube type Tek scopes. I will likely only >> keep the 565 machine, as all good 70s mainframe shops had a Tek on a >> cart tucked away somewhere. > > You, sir, are blessed with being in the right part of the country to get > interesting gear cheap. The best I can hope for around here is old VCRs and > last year's Pentiums. And yes, I DO know how to find stuff...there's just > not any here. > >> Just a few days ago I came into a 535A and a 567. The 567 is a little >> bit of an oddball, as it has the built in Nixie tube frequency >> counter. I may end up parting these out, unless someone wants to give >> me scrap/parts/shipping value (from 10512). It is a bit rough, so it >> is a bit of a project. > > 567, I don't think I've even heard of that model. Built-in frequency > counter, neat! I might be interested in picking that up from you if you > don't get any other takers. > > -Dave > > -- > Dave McGuire > Port Charlotte, FL Dont think its frequency counter but a voltmeter/comparator widget that can measure amplitude/risetime etc when used with sampling plugins. Has go/nogo outputs, probably intended as part of a automated test system. Peter Wallace ------------------------------ Message: 2 Date: Thu, 12 Nov 2009 19:04:28 -0500 From: William Donzelli <wdonzelli at gmail.com> Subject: Re: Shipping a Tek 'scope To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <e1d20d630911121604t6b5871c5i6bfcdffcf2d4ddf7 at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 > Dont think its frequency counter but a voltmeter/comparator widget that can > measure amplitude/risetime etc when used with sampling plugins. Has go/nogo > outputs, probably intended as part of a automated test system. I think you might be right there. I will take a look at it tomorrow. -- Will ------------------------------ Message: 3 Date: Thu, 12 Nov 2009 19:10:50 -0500 From: William Donzelli <wdonzelli at gmail.com> Subject: Re: GRI To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <e1d20d630911121610yc5d84y3649b6185709cdb3 at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 > GRI--Newton, Mass--I thought, was a firm not affiliated with anyone. The advert in an old Datamation has the fine print "part of GR Industries". GenRad at the time was an almost sunken ship (there is such a thing as being too conservative in the test equipment market!), and I have to think it was a mad attempt to bail out the water. -- Will ------------------------------ Message: 4 Date: Thu, 12 Nov 2009 17:35:04 -0700 From: CRC <technobug at comcast.net> Subject: Re: Shipping a Tek 'scope To: cctalk at classiccmp.org Message-ID: <211232ED-E34B-4679-913D-BEE87A8EDA70 at comcast.net> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes On Thu, 12 Nov 2009 15:35:03 -0800, Chuck Guzis wrote: > [...] > You can say that again. While I don't miss fussing with the old > storage-tube scopes, a good analog scope is still a very valuable > tool (mine is an old Tek 465). I wouldn't mind owning a 7000 series > unit with a nice palette of plugins, but I suspect those are still in > high demand and command real money. > > --Chuck On Thu, 12 Nov 2009 18:51:34 -0500, Dave McGuire wrote: > 770x scopes are relatively cheap, but a 790x in good shape will > set you back may hundreds of dollars. The good thing is that they're > practically indestructible. > [...] I've seen quite a few 770x and 79xx scopes come through my local scraper in the last few years and haven't sold. Right now, the gold value in these beasts are worth more than what people are willing to pay and almost all are hitting the scrap bin. As a house warmer I keep a 7944 around - a two beam unit that will display 8 inputs, but use a Tek 2465B when I need the speed. CRC ------------------------------ Message: 5 Date: Thu, 12 Nov 2009 17:00:56 -0800 From: "Chuck Guzis" <cclist at sydex.com> Subject: Re: Shipping a Tek 'scope To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <4AFC3F48.24450.21FCBAB at cclist.sydex.com> Content-Type: text/plain; charset=US-ASCII On 12 Nov 2009 at 17:35, CRC wrote: > I've seen quite a few 770x and 79xx scopes come through my local > scraper in the last few years and haven't sold. Right now, the gold > value in these beasts are worth more than what people are willing to > pay and almost all are hitting the scrap bin. As a house warmer I keep > a 7944 around - a two beam unit that will display 8 inputs, but use a > Tek 2465B when I need the speed. A shame--I remember putting in a lot of hours with the logic analyzer plugin--it was amazingly useful, even when compared to the dedicated HP analyzers of the 70s. --Chuck ------------------------------ Message: 6 Date: Thu, 12 Nov 2009 20:24:08 -0500 From: Dave McGuire <mcguire at neurotica.com> Subject: Re: Shipping a Tek 'scope To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <8704A9C2-14D8-42C3-96E8-20EC283E2294 at neurotica.com> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed On Nov 12, 2009, at 7:35 PM, CRC wrote: >> [...] >> You can say that again. While I don't miss fussing with the old >> storage-tube scopes, a good analog scope is still a very valuable >> tool (mine is an old Tek 465). I wouldn't mind owning a 7000 series >> unit with a nice palette of plugins, but I suspect those are still in >> high demand and command real money. >> >> --Chuck > > On Thu, 12 Nov 2009 18:51:34 -0500, Dave McGuire wrote: > >> 770x scopes are relatively cheap, but a 790x in good shape will >> set you back may hundreds of dollars. The good thing is that they're >> practically indestructible. >> [...] > > I've seen quite a few 770x and 79xx scopes come through my local > scraper in the last few years and haven't sold. Right now, the gold > value in these beasts are worth more than what people are willing > to pay and almost all are hitting the scrap bin. As a house warmer > I keep a 7944 around - a two beam unit that will display 8 inputs, > but use a Tek 2465B when I need the speed. They still fetch big bucks on eBay and through brokers. Anyone scrapping them is a fool. -Dave -- Dave McGuire Port Charlotte, FL ------------------------------ Message: 7 Date: Thu, 12 Nov 2009 20:27:31 -0500 From: "Curt @ Atari Museum" <curt at atarimuseum.com> Subject: Re: GRI To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Message-ID: <4AFCB603.5060204 at atarimuseum.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Anybody have a Genrad 6500 development system they'd like to trade or sell ? Curt Dave McGuire wrote: > > GenRad made LOTS of very high-end automated board testers as well, > most of which were built around embedded Qbus PDP-11s. Many of them > are still in service; I have a friend who runs a tidy business > maintaining them. > > -Dave > > On Nov 12, 2009, at 6:32 PM, Dave Caroline wrote: >> Around that time ish they were also making a digital tester, Bug hound >> GR2220, I wonder if that was born to fix their computer etc >> >> Dave Caroline >> >> On Thu, Nov 12, 2009 at 11:18 PM, William Donzelli >> <wdonzelli at gmail.com> wrote: >>> Speaking of classic test equipment... >>> >>> The circa-1970 GRI-99 minicomputer from GRI. What a bomb. I have to >>> wonder how many sold, and if any are left. >>> >>> Was GRI an attempt by General Radio to get into the minicomputer fray? >>> >>> -- >>> Will >>> > > ------------------------------ Message: 8 Date: Thu, 12 Nov 2009 19:49:07 -0600 From: Brian Lanning <brianlanning at gmail.com> Subject: Re: apple documentary and huge apple collection To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <6dbe3c380911121749k46bd11c9s661f9ecffc77e8c9 at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 On Thu, Nov 12, 2009 at 5:26 PM, Alexandre Souza <pu1bzz.listas at gmail.com>wrote: > It remembers me how HARD is to find a IIGS here in Brazil. Even a > motherboard would help. > > BTW, anyone with a spare Ramworks II or Ramworks III? :o) > Or how about a 2e/2gs scsi controller? There are great many machines that aren't here either. I'd like to have a Sharp X68000. But that's unlikely to happen here. If one came up on ebay, I'm sure it would have a ridiculous price. :-) I just picked up a spare 2gs from ebay for the princely sum of $8. lol Some of them go for quite a bit though if they include all the accessories. brian ------------------------------ Message: 9 Date: Thu, 12 Nov 2009 18:17:02 -0800 From: "Chuck Guzis" <cclist at sydex.com> Subject: Re: GRI To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <4AFC511E.14431.2657941 at cclist.sydex.com> Content-Type: text/plain; charset=US-ASCII On 12 Nov 2009 at 19:10, William Donzelli wrote: > > GRI--Newton, Mass--I thought, was a firm not affiliated with anyone. > > The advert in an old Datamation has the fine print "part of GR > Industries". > > GenRad at the time was an almost sunken ship (there is such a thing as > being too conservative in the test equipment market!), and I have to > think it was a mad attempt to bail out the water. Will, I think it's the wrong "GR", but an interesting story. From http://www.cs.uiowa.edu/~jones/arch/risc/ "Sidenote: Saul Dinman explained in 2003 that GRI was originally General Research Corporation, a private Massachussetts company; when it went public, it had name conflicts with a pre-existing General Research, and then with General Radio as it hunted for a non- conflicting name. Under the name GRI, the company was eventually acquired by venture capitalists in North Carolina, and then by a display manufacturer that wanted to buy their OEM supplier, and finally by Analog Devices. The GRI processor architecture was one of the first bus-oriented architectures built using a printed-circuit backplane. Thousands of GRI-909 systems were sold on an OEM basis, mostly in the industrial control sector. Had marketing and capitalization worked out differently, the GRI-909 might have been an effective competitor for the Data General Nova, another DEC spinoff." So I guess that any remnants of GRI might be in AD's archives... Cheers, Chuck ------------------------------ Message: 10 Date: Thu, 12 Nov 2009 19:06:14 -0800 From: Al Kossow <aek at bitsavers.org> Subject: Re: GRI To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Message-ID: <4AFCCD26.4090402 at bitsavers.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed William Donzelli wrote: > Was GRI an attempt by General Radio to get into the minicomputer fray? > No, it was a company started by Saul Denman after he left DEC. Saul came up with the PDP-8/S Did some GRI stuff turn up? ------------------------------ Message: 11 Date: Thu, 12 Nov 2009 19:16:44 -0800 From: Al Kossow <aek at bitsavers.org> Subject: Re: GRI To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Message-ID: <4AFCCF9C.3000400 at bitsavers.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Curt @ Atari Museum wrote: > Anybody have a Genrad 6500 development system they'd like to trade or > sell ? > The 6500 development system was designed by a company called Datakit. Home-grown OS, and hard sectored floppies, as I recall. ------------------------------ Message: 12 Date: Thu, 12 Nov 2009 22:21:36 -0500 From: William Donzelli <wdonzelli at gmail.com> Subject: Re: GRI To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <e1d20d630911121921l28c361d9ta93659e61e0113c1 at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 > No, it was a company started by Saul Denman after he left DEC. Saul > came up with the PDP-8/S > > Did some GRI stuff turn up? Nope, just some old Datamations with the advert. I find it interesting that the ad does not make it clear at all that the company is or is not associated with GenRad. -- Will ------------------------------ Message: 13 Date: Thu, 12 Nov 2009 22:30:14 -0500 From: "Curt @ Atari Museum" <curt at atarimuseum.com> Subject: Re: GRI To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Message-ID: <4AFCD2C6.2050904 at atarimuseum.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi Al, Thanks for the heads up and info.... Curt Al Kossow wrote: > Curt @ Atari Museum wrote: >> Anybody have a Genrad 6500 development system they'd like to trade or >> sell ? >> > > The 6500 development system was designed by a company called Datakit. > Home-grown > OS, and hard sectored floppies, as I recall. > > ------------------------------ Message: 14 Date: Thu, 12 Nov 2009 23:04:41 -0500 From: "Teo Zenios" <teoz at neo.rr.com> Subject: Re: apple documentary and huge apple collection To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <E51349B2B4A64A878BA06BC75AB5C6F2 at dell8300> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original ----- Original Message ----- From: "Brian Lanning" <brianlanning at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Sent: Thursday, November 12, 2009 8:49 PM Subject: Re: apple documentary and huge apple collection > On Thu, Nov 12, 2009 at 5:26 PM, Alexandre Souza > <pu1bzz.listas at gmail.com>wrote: > >> It remembers me how HARD is to find a IIGS here in Brazil. Even a >> motherboard would help. >> >> BTW, anyone with a spare Ramworks II or Ramworks III? :o) >> > > Or how about a 2e/2gs scsi controller? > I just picked up a spare 2gs from ebay for the princely sum of $8. lol > Some of them go for quite a bit though if they include all the > accessories. > > brian Depends what you do on the IIgs. If you just want to play games or a few old apps you can get by with a simple system, monitor, keyboard, dual 3.5" and dual 5.25". I have a Transwarp IIgs, 8mb RAM card, rev C SCSI card, and I mostly just boot from floppy and play games. All the extras are nice if you use GS/OS and want to transfer images and files around (and read HFS partitions or network with a Mac), but if you have an old Mac you can make usable disks there. You can still find systems on freecycle if you post a wanted, they will most likely be basic setups (teachers seem to snag them for their kids and then get rid of them when the kids get older). ------------------------------ Message: 15 Date: Thu, 12 Nov 2009 11:00:38 -0800 From: jim s <jws at jwsss.com> Subject: Re: Walkthrough of a small datacenter 1992 To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Message-ID: <4AFC5B56.9050309 at jwsss.com> Content-Type: text/plain; charset=UTF-8; format=flowed rmg at ranma.com wrote: > Just ran across this list. I thought I'd share this with all of you. > > http://www.youtube.com/watch?v=am60T-p7f1E > > This was when I was working at NASA Ames -- NASA Science Internet (NSIPO), Building N-233. I had a Sony Hi8 I just had bought and was testing out. I'm surprised I kept this footage. > > Enjoy! > > Rob Gutierrez > Very interesting footage to have. I have a friend who may have one of the Micom boxes. We used one in our office for terminal access. Also interesting is that one seemed to have to waste paper to keep the systems running. I suppose most dec systems had printing consoles and had to be running, from the stories that are out there about systems where the consoles quit. I noticed the disk drives as well, still have some fujitsu drives, as well as the CDC SMD drives that appeared to be in the racks. thanks for posting it. ------------------------------ Message: 16 Date: Fri, 13 Nov 2009 09:03:56 -0500 From: "Dave Dunfield" <dave09 at dunfield.com> Subject: Compupro 8/16 system avail. in San Francisco Bay area To: cctalk at classiccmp.org Message-ID: <14E4FC3534B2 at dunfield.com> Content-Type: text/plain; charset=US-ASCII Apparently headed for recycling if no takers are found (so act soon). Contact me off-list for more info. Dave -- dave09 (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html ------------------------------ Message: 17 Date: Fri, 13 Nov 2009 09:03:56 -0500 From: "Dave Dunfield" <dave09 at dunfield.com> Subject: PET, Sinclair, Unitron (AppleII clone), TI-99/4As avail near Toronto. To: cctalk at classiccmp.org Message-ID: <14E4FBE73756 at dunfield.com> Content-Type: text/plain; charset=US-ASCII 1 Commodore 8032 computer 1 Commodore 8250M dual floppy drive 1 timex/sinclair M330 computer 1 Unitron Apple clone with single floppy drive,Applesoft tutorial & Apple lle owners manual 2 Texas Instr. TI-94/4A computers with two power supplies, one synthesizer unit with software & manuals. Located in Richmond Hill, north of Toronto (Ontario, Canada). Apparently headed for recycling if no takers are found (so act soon). Contact me off-list for more information. Dave -- dave09 (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html ------------------------------ Message: 18 Date: Fri, 13 Nov 2009 11:22:04 -0200 From: Alexandre Souza <pu1bzz.listas at gmail.com> Subject: Re: PET, Sinclair, Unitron (AppleII clone), TI-99/4As avail near Toronto. To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <4a15f9590911130522h74bc0405t348103331436853b at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Wow, Unitron AP II :oD This is the best brazilian apple clone :oD On Fri, Nov 13, 2009 at 12:03 PM, Dave Dunfield <dave09 at dunfield.com> wrote: > 1 Commodore 8032 computer > 1 Commodore 8250M dual floppy drive > 1 timex/sinclair M330 computer > 1 Unitron Apple clone with single floppy drive,Applesoft tutorial > & Apple lle owners manual > 2 Texas Instr. TI-94/4A computers with two power supplies, one > synthesizer unit with software & manuals. > > ------------------------------ Message: 19 Date: Fri, 13 Nov 2009 15:55:57 +0000 From: shumaker at att.net Subject: Osborn 1 systems available in OR To: cctalk at classiccmp.org Message-ID: <111320091555.5993.4AFD818C000E88970000176922230706129B0A02D29B9B0EBF9D0A050E039A089C at att.net> 2 Osborn 1 systems available in the Corvallis (actually Albany) OR area.. One gets a screen prompt, one does not (NFI) seller wants $20 each but suspect he's flexible. Needs them gone so he can move. there is apparently SOME software/docs to go with. anyone interested, contact me off list for info steve End of cctalk Digest, Vol 75, Issue 17 **************************************

16 years, 8 months

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Osborn 1 systems available in OR

by shumaker＠att.net

2 Osborn 1 systems available in the Corvallis (actually Albany) OR area.. One gets a screen prompt, one does not (NFI) seller wants $20 each but suspect he's flexible. Needs them gone so he can move. there is apparently SOME software/docs to go with. anyone interested, contact me off list for info steve

16 years, 8 months

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Compupro 8/16 system avail. in San Francisco Bay area

by dave09＠dunfield.com

Apparently headed for recycling if no takers are found (so act soon). Contact me off-list for more info. Dave -- dave09 (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html

16 years, 8 months

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PET, Sinclair, Unitron (AppleII clone), TI-99/4As avail near Toronto.

by dave09＠dunfield.com

1 Commodore 8032 computer 1 Commodore 8250M dual floppy drive 1 timex/sinclair M330 computer 1 Unitron Apple clone with single floppy drive,Applesoft tutorial & Apple lle owners manual 2 Texas Instr. TI-94/4A computers with two power supplies, one synthesizer unit with software & manuals. Located in Richmond Hill, north of Toronto (Ontario, Canada). Apparently headed for recycling if no takers are found (so act soon). Contact me off-list for more information. Dave -- dave09 (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html

16 years, 8 months

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apple documentary and huge apple collection

by brianlanning＠gmail.com

We've been watching netflix through the xbox 360 lately. They have a documentary about apple that started out good, but sort of went down hill I think. (it seemed a few years old, so you may have already seen it) But toward the end, they showed a guy with a huge apple collection. He makes all of us look like amateurs. He doesn't have a storage facility. He has a 6000sqft building. It looks like a small office building. He also had machines in his basement, attic, and in a storage shed that looks more like a 2-car detached garage. In the video I saw maybe 40 or 50 apple 2es. I like stuff like this. It give me something to point my wife at and say, "see, at least i'm not like that guy!" lol http://www.netflix.com/Movie/Welcome_to_Macintosh/70112046?strackid=7c44782… brian

16 years, 8 months

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GRI

by wdonzelli＠gmail.com

Speaking of classic test equipment... The circa-1970 GRI-99 minicomputer from GRI. What a bomb. I have to wonder how many sold, and if any are left. Was GRI an attempt by General Radio to get into the minicomputer fray? -- Will

16 years, 8 months

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Shipping a Tek 'scope

by technobug＠comcast.net

On Thu, 12 Nov 2009 15:35:03 -0800, Chuck Guzis wrote: > [...] > You can say that again. While I don't miss fussing with the old > storage-tube scopes, a good analog scope is still a very valuable > tool (mine is an old Tek 465). I wouldn't mind owning a 7000 series > unit with a nice palette of plugins, but I suspect those are still in > high demand and command real money. > > --Chuck On Thu, 12 Nov 2009 18:51:34 -0500, Dave McGuire wrote: > 770x scopes are relatively cheap, but a 790x in good shape will > set you back may hundreds of dollars. The good thing is that they're > practically indestructible. > [...] I've seen quite a few 770x and 79xx scopes come through my local scraper in the last few years and haven't sold. Right now, the gold value in these beasts are worth more than what people are willing to pay and almost all are hitting the scrap bin. As a house warmer I keep a 7944 around - a two beam unit that will display 8 inputs, but use a Tek 2465B when I need the speed. CRC

16 years, 8 months

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large core memory on Ventura CraigsList! item 1459663074

by shumaker＠att.net

for the listers that lust after core memory, there is one up on the Ventura CraigsList that appears to be a complete intact subsystem with all support circuitry in original housing. Described as a Litton Mass Core Memory Unit with an Ampex Core Assembly inside, poster put up several nice photos wants $450 for it steve

16 years, 8 months

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Shipping a Tek 'scope

by john_finigan＠yahoo.com

Tony Duell wrote: > The 555 even has regulated heater supplies. The heater > transformer is fed > through a saturable reactor. The current in the control > winding of that > comes from a pentode valve in the PSU unit, the grid > voltage of that is > controlled by a bright-emitter diode running off one of the > heater lines. > So the thing actually gets the RMS value of the heater > supplies correct > (which is what you want, of course). That's fascinating. I'd seen "passive" ballast tubes for heater regulation, but not an "active" solution like this. I found a good write-up at: http://www.radiomuseum.org/forum/2as15_how_it_works.html Especially interesting to me is the mechanical link in the diode that shorts it out when the filament burns out, pulling down the regulated voltage. I wonder if they learned the necessity of that the hard way. John Finigan

16 years, 8 months

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Walkthrough of a small datacenter 1992

by rmg＠ranma.com

Just ran across this list. I thought I'd share this with all of you. http://www.youtube.com/watch?v=am60T-p7f1E This was when I was working at NASA Ames -- NASA Science Internet (NSIPO), Building N-233. I had a Sony Hi8 I just had bought and was testing out. I'm surprised I kept this footage. Enjoy! Rob Gutierrez

16 years, 8 months

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Free: Dual Pentium Motherboard

by devonstopps＠gmail.com

I have one Asus PCI/I-P54NP4D dual processor Pentium motherboard (Socket5). Has memory and one CPU. Free plus shipping from Kingston, ON.

16 years, 8 months

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Dec HSC-70 boards available

by quapla＠xs4all.nl

For those who want it (cost of postage + $20 for the 'bribe') : I have about 20 boards from 2 HSC-70's cluster controllers and several floppies which came with them. All the boards together is about 12Kg in weight. Ed -- Certified : VCP 3.x, SCSI 3.x SCSA S10, SCNA S10

16 years, 8 months

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My odd message...

by woyciesjes＠sbcglobal.net

On Nov 6, 2009, at 2:41 PM, Dave Woyciesjes wrote: > > > > Date: Fri, 6 Nov 2009 14:48:33 -0500 From: Dave McGuire <mcguire at neurotica.com> Gezundheit. -Dave Thank you... (BTW, switched to digest for now...) Yeah, I had to go back and look to make sure I really sent a blank message like that. Must've been when I was tinkering with the new (to me) iPhone 3G.. Well, it's just an iPod Touch now, since it's not getting any cel signal; and I have no justification for paying out the nose for the data plan.... Now to figure out how to get the iPhone Mail to have different sigs for different accounts... -- --- Dave Woyciesjes --- ICQ# 905818 --- AIM - woyciesjes --- CompTIA A+ Certified IT Tech - http://certification.comptia.org/ --- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/ "From there to here, From here to there, Funny things are everywhere." --- Dr. Seuss

16 years, 8 months

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JiffyDOS Forensics

by brain＠jbrain.com

Please feel free to repost on other forums, I'm trying to catch as many people as possible: As many of you are probably aware, I acquired a license to sell JiffyDOS earlier this year and am now ramping up sales. To that end, I am trying to reconstruct the exact product offerings that CMD offered. This means verifying images, and determining what original ROM images CMD supplied with each overlay. Thus, if anyone can use a DOS ROM reading utility (or EPROM reader) and can send me a copy of the both halves of the JDOS ROM, I'm still struggling with the following systems. 1571: I have three versions here, but cannot determine which is correct. The MD5s are: 41c6cc528e9515ffd0ed9b180f8467c0, 6b4d46b28b7414d5a82cea4972894600, and d649fa6b0108c20ce213f5496d5980a5. What is the version number on the ROM sticker?) 1571D: I have a 1571D JiffyDOS ROM here, but it looks to be a 1571DCR (the cost reduced version). Notes indicate a non-CR 1571D used a normal 1571 JD ROM overlay, but I'd like to verify that. MSD SD1/SD2: I am trying to determine the version of MSD code in the lower half of the U5 JiffyDOS for SD2. The MD5 is 1a2efac3b96decf83fba27bc17c5a8a7. I checked against my SD2-2.3 version here, but they are different. Also, is the SD1 JiffyDOS the same as SD2 version? Indus GT: I do not have an original JDOS for this, so I need a dump to compare. 1541C: Again, I do not own an original JDOS for this machine. I understand there is a Swedish version of JiffyDOS for the C128 and C128D (and possibly for the C64) [Update: I have been sent copies of the Swedish JiffyDOS ROMs, but I'd still be interested in what version of KERNAL was included as the "original" KERNAL for these units.] German/Finnish JiffyDOS variants? Any help folks can provide would be much appreciated. In fact, if you have an original JDOS, no matter the type and can dump it for me (both the original and the JD portions), that'd be great. Anything you can tell me about the setup - sticker legend (version number, etc.), machine variant (128, 128D, 128DCR, etc.), video standard (PAL/NTSC), and whether it had a switch on the ROM - is good information to share. To clarify, I know there are bootleg archives available, but I can't consider them authoritative. In addition, the archives would not tell me what CMD placed in the non-JD half of the EPROM on units with switches. I would prefer to check against genuine copies of the overlays if at all possible. Jim -- Jim Brain, Brain Innovations (X) brain at jbrain.com Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! Home: http://www.jbrain.com

16 years, 8 months

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updated the Alpha Micro Phun Machine

by spectre＠floodgap.com

Having the day off, I finally uploaded some new pr0n to the Alpha Micro Phun Machine, including pictures of the AM-1000 and AM-1001 I got recently, and the AM-1041 S-100-based system that I'm hoping to restore and get operational in the not-so-distant future (hi Bob!). I also included a download for the fingerproxy, which I'm using to give arbitrary TCP socket access to older AlphaTCP installations. Maybe I'll work on Lynx for the Alpha Micro next ;-) Anyway, http://ampm.floodgap.com/ Running on a real Alpha Micro Eagle 300 since 2007! -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- "My inner geek can beat up your inner geek." -------------------------------

16 years, 8 months

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Shipping a Tek 'scope

by john_finigan＠yahoo.com

Jules Richardson wrote: > I'm not reading here much at present, not until I > eventually get all my > collection moved, but I did just get offered a Tek 545A > which is languishing > in a garage down in Texas, so figured I'd ask about > shipping it safely. Cool! I had a similar one, a 543 IIRC, that was the only major piece of tech-junk I lost to hurricane Katrina. I still grin thinking of my complete panic when I looked at one side panel and saw a big orange glow in the tubes next to the power transformer. Got the side off and realized it was a neon filled voltage reference tube, not a glowing plate. Anyway, the things are a treasure trove of interesting tubes. I like the tiny soldered-in (baseless) HV rectifiers, tube regulated B+ system, and the electromechanical time delay "tube" that lets the thing warm up before applying HV. It's interesting to see tube design in "cost not much of an object" mode. I used to have Stan Griffiths' book "Oscilloscopes: Selecting and Restoring a Classic". I don't remember it being particularly technical, but it has tons of info on the Tek tube-era product line, and was fun to thumb through, if you're into that kind of thing. John Finigan

16 years, 8 months

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H8 system boards for sale or trade

by jgessling＠yahoo.com

I was considering parting out these boards for the chips and caps but realized that was really dumb. My ttl hobby is based on using parts in my junk boxes or parts paid for by other things in the collection. To that end I am offering these 5 boards and one manual. Three of the five boards have had the bus connector removed, some have a few chips removed. Please look here: http://picasaweb.google.com/jjgessling/ComputerStuff# Please let me know what you think, I can certainly ship. Regards, Jim

16 years, 8 months

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VT420s

by wdonzelli＠gmail.com

I am finally testing out the pile of DEC VT420s I recently came into. Here is the deal: These are in decent, but sometimes a little grungy condition. I will test them out, and make sure the video is good, the comm port is good, and the keyboard is good. I will let them sit powered on for 15 minutes as a simple burnin. I will not clean them. They will be packed very nicely. $25.00 plus S&H from 10512. These weigh roughly 20 pounds unpacked. Please reply off list. -- Will

16 years, 8 months

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My odd message...

by woyciesjes＠sbcglobal.net

Date: Tue, 10 Nov 2009 19:04:59 -0600 From: Daniel Seagraves <dseagrav at lunar-tokyo.net> On Nov 10, 2009, at 6:58 PM, Dave Woyciesjes wrote: > > Yeah, I had to go back and look to make sure I really sent a > > blank > > message like that. Must've been when I was tinkering with the new > > (to > > me) iPhone 3G.. Well, it's just an iPod Touch now, since it's not > > getting any cel signal; and I have no justification for paying out > > the > > nose for the data plan.... > > And that's what you get for buying Apple. Next time buy a real > computer. > You seem educated - You should have known better. Hey... Oh, wait, should've seen that coming. I neglected to mention that I didn't actually buy it. A co-worker here on the help desk had gotten a replacement, because this one wasn't getting phone signal anymore. I started using it so I could be familiar with it; for when users call in to get help with thiers. I would think Ubuntu Linux counts as a (fairly) real computer. Yeah, I know it's not a VAX or Cray... but it is kinda close. And free. And thanks for the edumication compliment... :) -- --- Dave Woyciesjes --- ICQ# 905818 --- AIM - woyciesjes --- CompTIA A+ Certified IT Tech - http://certification.comptia.org/ --- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/ "From there to here, From here to there, Funny things are everywhere." --- Dr. Seuss

16 years, 8 months

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Looking for a Tally 420 tape puncher and a 424 tape reader

by wlsilva＠sbcglobal.net

Looking for a Tally 420 tape puncher and a Tally 424 tape reader, we need these for a restoration project for a Telemetry console that was used in the Titan rocket program. The Tally units that were in the operators console are missing, and we really would like to replace them for proper display. Here is a link to a photo of both units http://www.dvq.com/ads/tally_dm_11_60.jpg Many thanks. Walter Silva

16 years, 8 months

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PC Magazine

by evan＠snarc.net

Got what I need, disregard previous message. Thanks to everyone who offered assistance.

16 years, 8 months

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pdp8/a core memory to trade! Ohhhhhh!

by hachti＠hachti.de

Hi, I'm kinda out of my head... I bought a pile of Omnibus boards from someone on eBay. Lots of boards for even more money. I got some Dataram core memory modules for pdp8/a. One 8K and three 16K modules. I expected them to be quad wide. I explicitly told the seller that I'd be interested only if they're quad wide. He sent me a photograph of a quad wide Dataram module. And what I got is hex wide. I'm going crazy... I spent all my money on that deal. In the hope to get enough core to fill my pdp8/e and /m. I'm really frustrated. Does anybody have quad wide core memory for Omnibus and wants to trade for pdp8/a memory? Examples: For one "single board" 16K module (not made by DEC) I'll give one 8K and one 16K DataRAM module. For two single board 8K modules (not made by dEC) I'll give one 16K DataRAM module and one H219 8K module. For three DEC 8K module sets, I'll give one 16K DataRAM module and 2 8K H219 modules. For four DEC 4K module sets, I'll give one 8K H219 and one 16K DataRAM module. If there are some larger amounts of 8K modules out there, I'd could throw in a set of pdp8/e CPU boards. Generally, I try to trade 3:2=8a:8e. If someone has something to trade, PLEASE contact me. I'm quite desperate because I spent all my money for the stuff. Best wishes, Philipp P.S.: I could use a single DEC 4K core board as well...

16 years, 8 months

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Looking for a Tally 420 tape puncher and a 424 tape reader

by wlsilva＠sbcglobal.net

Looking for a Tally 420 tape puncher and a Tally 424 tape reader, we need these for a restoration project for a Telemetry console that was used in the Titan rocket program. The Tally units that were in the operators console are missing, and we really would like to replace them for proper display. Many thanks. Walter Silva

16 years, 8 months

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PC Magazine back issue

by evan＠snarc.net

Anyone have the Nov. 1983 issue of PC Magazine? If so, please email me off-list -- evan at snarc.net. Thanks.

16 years, 8 months

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Computer Equipment I Don't Need

by wgungfu＠gmail.com

Located in the Milwaukee, WI area. Looking for offers, trades, whatever, otherwise it's going to recycling - An x-term server by Tektronix, called TekXpress model XP26. Network Computing Devince Inc. x-term, Display Station Model #NCD88K (includes mouse and keyboard). Sparcstation 1 (includes mouse and keyboard). Email me if interested. Marty

16 years, 8 months

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Looking for key of IBM console

by quapla＠xs4all.nl

Ok, I have this IBM console and I'm looking for the key and possibly some replacement bulb's. The bulbs are some sort of little tubes made of clear plastic, and they contain an even smaller glass bulb. I might be able to open them up and replace them with white or yellow led with a small series resitor, but it looks like it's not that easy to do. See the pic at http://tinyurl.com/yjnt9cn Any other suggestions I could do with it? Ed -- Certified : VCP 3.x, SCSI 3.x SCSA S10, SCNA S10

16 years, 8 months

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DEC X8 pdp8 exerciser?

by djg＠pdp8online.com

> I've got an email from Tim Radde. The DEC X8 can be found on an RK05 > image at David Gesswein's website: > http://www.pdp8.net/ftp/images/os8/diagpack2.rk05 > > This looks quite complete. There's also a readme file on t > The text file refered to says a real manual existed AC-C276E-MA - AXQABE0 DEC/X8 User's Guide Does anybody have a copy of it? http://www.pdp8online.com/pdp8cgi/os8_html/DECX8.TX?act=file;fn=images/os8/… http://www.pdp8online.com/images/index.shtml

16 years, 8 months

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Getting P4 video to work in a Sun 4/110

by derschjo＠mail.msu.edu

I've decided to play with some of my older Sun hardware this weekend, it seems :). I have a 4/110 (Sun's first desktop/side Sparc machine) and two P4 video cards -- a CG4 (501-1248) and an MG3 (501-1247). I can't get the 4/110 to see either of them. Running boot diagnostics shows it probing for a card in the P4 slot but not finding anything. I've hooked the CG4 up to a monitor and the monitor syncs with it and displays a blank screen, so it's getting power and doing something, but for some reason the machine won't see it. Any ideas? Thanks as always... Josh

16 years, 8 months

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Atari Disk Drives...

by geoffr＠zipcon.net

This is the way we burn the roms (now to find some MCM6810 or compatible rams and upgrade the ram in my old 1050 non double density) and make a US doubler compatible 1050. Copied the rom from my other USDblr 1050, and need to make the piggyback ram. ?course my DD 1050 needs new ram, it?s damaged too :(

16 years, 8 months

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S-100 IDE project

by lynchaj＠yahoo.com

Hi! My good friend John and I are working on a joint www.S100Computers.com & N8VEM <http://groups.google.com/group/n8vem> S-100 IDE project. It is based on the following design by Peter Faasse. http://www.pjrc.com/tech/8051/ide/wesley.html John built a working prototype and some software and I am making a PCB. The PCB is in trace route optimizing phase now. I can't say exactly when a PCB will be available but if you think you might be interested please let me know. PCBs will probably cost *about* $22 give or take some plus shipping. If you do want a PCB it is important you tell me beforehand so I can include it in the manufacturing order. The board will connect to regular IDE devices and includes mounting areas and interfaces for laptop (2.5" with the high density 44 pin connector) and CF adapters. John has his prototype working with a CF adapter mounted on the PCB and it seems to work fine. Thanks and have a nice day! Andrew Lynch

16 years, 8 months

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DEC X8 pdp8 exerciser?

by hachti＠hachti.de

Hi folks, I've heard of something called "DEC X8", a modular pdp8 exerciser. Does someone have this? I don't have it and I've been further told that it can be used to run acceptance tests on pdp8 without the need for all that little maindecs... Best wishes, Philipp

16 years, 8 months

1
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Heathkit Sweet-P plotter

by ronald.carlson.54＠sbcglobal.net

Joe, Saw your message in the archives. I have the Sweet-P documentation, full manual, assembly, programming examples and schematic. Contact me if you still have the Sweet-P. Regards, Ron Carlson

16 years, 8 months

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You can help to solve the greatest mystery of all mankind! Help identify this printer from 1966, hardest item I have ever tried to find information on.

by wlsilva＠sbcglobal.net

Hello I am trying to identify this rack printer from the time period of 1966. The printer circled in this photo http://www.flickr.com/photos/19997518 at N02/4085043282/ is the unit in question, it was made by "Franklin" , and you can imagine the search results I get when searching for "Franklin printer" EVERYTHING is about Benjamin Franklin. The equipment in the photo is a Delco missile guidance telemetry monitor, I have seen photos of the same printer used in Nasa tracking station equipment from the 1960's, and I know that a aircraft version of the printer was used in military planes of the same time. We are trying to restore a Delco Telemetry console from the 1960's that is missing the Franklin printer, and we would like to try to find one to replace the original. If anyone can provide information about the company that made these printers (I assume they went by the Franklin name) or can ID this actual printer model, it would be off immense help for us, we assume they were a USA company, but that is all I know. I did get to talk with the gentleman that was in charge of the Delco telemetry dept in 1967, and the only information he could recall is that the printer was a impact printer, made by Franklin, and was a high end unit for its day. Thanks to all, and silly prize to anyone who can solve this ! Walter wlsilva at sbcglobal.net

16 years, 8 months

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S-100 IDE project

by lynchaj＠yahoo.com

Reply to http://classiccmp.org/pipermail/cctalk/2009-November/278452.html Hi! John has some CBIOS software for CP/M 3.0 based on his system. I do not know what the maximum drive size is but on the N8VEM DiskIO board CBIOS for CP/M 2.2 the maximum size is 8MB. I believe the 8MB limit also applies to the S-100 IDE board. At least in theory you could implement your own CBIOS extensions for partitions and the like. We are doing something akin to that on the N8VEM project for the SBC DiskIO CBIOS. However that is a completely separate project from this board. Anyone who gets one of these S-100 IDE boards would have to integrate it into their CP/M system using the PCB, the schematics, and the example code. No further support is offered. As John wisely says on comp.os.cpm "Please note these would be bare cards, a schematic and that's it. Building the board and implementing CPM etc., you are on your own. This is not a project for first timers." There you have it -- Caveat Emptor. Thanks and have a nice day! Andrew Lynch How are you getting around the 8meg max drive size common with CPM ? Are you splitting it into many small drives in hardware on in the driver like Morows dod for the M26 ? I have an old MPM system that had an M26 on it I would like to bring back to life. The other Bob On Fri, 6 Nov 2009 16:42:28 -0500, Andrew Lynch wrote: >Hi! My good friend John and I are working on a joint www.S100Computers.com & >N8VEM <http://groups.google.com/group/n8vem> S-100 IDE project. It is based >on the following design by Peter Faasse. >http://www.pjrc.com/tech/8051/ide/wesley.html >John built a working prototype and some software and I am making a PCB. The >PCB is in trace route optimizing phase now. I can't say exactly when a PCB >will be available but if you think you might be interested please let me >know. PCBs will probably cost *about* $22 give or take some plus shipping. >If you do want a PCB it is important you tell me beforehand so I can include >it in the manufacturing order. >The board will connect to regular IDE devices and includes mounting areas >and interfaces for laptop (2.5" with the high density 44 pin connector) and >CF adapters. John has his prototype working with a CF adapter mounted on the >PCB and it seems to work fine. >Thanks and have a nice day! >Andrew Lynch

16 years, 8 months

2
1
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A few classic computer photos

by ard＠p850ug1.demon.co.uk

I've put a few photos of mostly classic computer stuff on flickr. From memory, there are some floppy drives coming apart, the boards from the HP9820 calculator, repairing the printer and card reader for that machine, upgrading the memory in an HP integral and an HP42S, and a few more. Do a search for tony_duell to find them.. Don;t try to make sense of the 'photostream', the sets, howerver, are in a sane order. Enjoy -tony

16 years, 8 months

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design rules for classic computer PCB projects

by lynchaj＠yahoo.com

Hi! I've been doing some PCB design work for various classic computer projects and would like to discuss and hear some advice from experienced PCB designers regarding design rules. What design rules do you normally use for vintage and/or classic PCB projects? Clearly the design rules depend on the application and technology involved. Normally, my projects are in the style typically from the late 1970's and early 1980's style technologies such as PC/XT ISA bus, ECB, S-100, etc. The components are typically 74LSxxx TTL DIP parts meant for easy and reliable construction. There are no SMT components or very high frequency signals. My typical starting design rules are 17 mil traces for signal, 51 mil traces for power (VCC and GND), air gap (min clearance) of 11 mils. Grid size varies depending but usually is 25 mils although I prefer 50 mils. Component pads are typically 55 mils diameter with a 32 mil hole. Connector pads are 60 mils diameter with a 40 mil hole. These parameters allow for a single trace to be routed through the pins of a typical device. Vias are 45 mils in diameter with a 25 mil hole. There are no blind or micro vias allowed since all of my projects are use 2 layer PCBs. Normally the signals for my projects are in the range of 1-8 MHz. Occasionally there is signal as much as 16 MHz clock but those are few. The harmonic content would contain higher frequencies since this is almost entirely digital circuitry and square waves are prevalent. I aggressively review and optimize the PCB layout and trace routing to minimize vias and overall trace length. This phase can be very time consuming but I think it is worth it. Of primary concern to me is trace length due to legacy busses, board density, size, and mainly using 74LSxxx technology. I've found longer traces can result in greater impedance for both signal and power which can interfere with proper operation. As a result I am using the 17 mil signal traces and 51 mil power traces to minimize impedance and the resulting voltage drops. Long traces can also have other effects which can raise havoc on digital circuits. Solid power supply rails is important so when I think a design is going may use a lot of power I specify 2 oz copper weights although for most PCBs it is only 1 oz. The wide signal and power traces are where I think my designs might be overly conservative. The really old PCBs I have seen are as much as 20 mil signal traces but most recent PCBs are less and around 10 mils and sometimes smaller. Minimizing switching transients is important so I normally place a 0.1 uF bypass monolithic ceramic capacitor per IC. Normally there is a larger 22 uF electrolytic or tantalum bypass capacitor placed across the main VCC to GND supply rails at the entry point to the PCB. So far the PCBs have turned out to be fairly reliable and easy to build. There have been a couple of errors but those are cases of where signal or power traces were either connected wrong or left off entirely due to EDA library problems. Things seem to be working fine although I am curious as to what other designers are using and why. I would like to improve my projects to make them the best possible and if there are ways to reduce trace length and minimize the number of vias. There are some sources of information on the internet regarding PCB design but much of the recent material is focused on SMT, low power, and/or very high frequency components. Often times I see trace widths less than 8 mils which to me seem quite hazardous. Here is a good link for some discussion on how to design a PCB for reliable manufacturing. It is about the right age for the projects I like to work on and the design rules are fairly consistent with mine but not exactly. I tend to be a bit more conservative with regard to larger trace width than the author. http://www.pic101.com/using_tango.htm Thanks in advance for any advice and/or insight on proper PCB design. I appreciate your thoughts and comments. Please no flames, this is intended to be a serious and on topic question. If you are going to change the topic please make a new subject. Thanks and have a nice day! Andrew Lynch

16 years, 8 months

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HP monitor and keyboard available

by henk.gooijen＠hotmail.com

Hi all, whilst cleaning out, I found an HP monitor with accompanying keyboard. A label on the keyboard reads C1400A (?) and on the monitor is a label that says 700/92 and 1001G. They are in working order, the screen lights up green, characters are sharp, so the CRT is fine. I guess that it will be local pick up only in Helmond, The Netherlands. Shipping in The Netherlands will probably cost just 6.75 euro, but outside the country will get too expensive. I am willing to ship it though, just hate to trash it, but that's going to happen in a week, if nobody wants it. - Henk.

16 years, 8 months

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Looking for multibus ethernet card (For Sun 2/120)

by derschjo＠mail.msu.edu

Got the fun parts of a Sun 2/120 workstation (a backplane and 2 sets of CPU, Memory, FPA and SCSI boards -- anyone have a spare Sun 2 chassis? :)) in a trade with another generous list member, and I've kind of got it running on my bench here... I'd like to get it connected to the Internet at some point. I'm looking for a 3Com 3c400 multibus ethernet interface... anyone have one spare to sell/trade? Thanks as always, Josh

16 years, 8 months

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HP 900/300 with HPUX and Windows ??? info needed

by g-wright＠att.net

I have a couple of HP 9000/300 series computers with HP 7953 drives and Intel processor cards in the computers. These have both HPUX and Windows on the same drive. It looks like the Windows file system shares the HPUX file system on these ?? What I want to do is backup the drives. Just want to make sure I get it all. If I do a "ls" under HPUX it shows both the HPUX and Windows files and directories. Along the same lines,does anyone have early HPUX tapes. I would like to come up with 9.x and earlier. I have backups of drives but no way to get the backup on to a drive that has failed. Thanks, Jerry

16 years, 8 months

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No subject

by woyciesjes＠sbcglobal.net

-- --- David Woyciesjes --- Yale University ITS Service Desk --- Science Park Bldg. 25 --- 150 Munson St --- New Haven, CT 06519 --- (203) 432-9000

16 years, 8 months

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I am selling some vintage parts

by jeffj＠panix.com

Hi! Jeff Jonas here I'm selling some vintage parts on ebay. This url lists all my current auctions: http://shop.ebay.com/mejeep_demeep_ferret/m.html http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320444928233 Item number:320444928233 Intel 8080A CPU in IMASI S100 CPU card: MPU-A rev-4 Here's a ceramic Intel C8080A 2975A 2 MHz CPU socketed in an IMSAI CPU CARD, S-100 bus: 1975 IMS ASSOC MPU-A REV 4 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320444923473 Item number:320444923473 NOS large Beckman neon panaplex display 8 digit nixie This is a new unused Panaplex-style neon display panel Beckman Kr85 PP450 019 8 digits, each with 7 segments, decimal point and comma. The flying leads are firmly attached to the edge. NO SPECIAL SOCKET OR CONNECTORS NEEDED! Digits are .7 inch tall, the 8 digits are 5 inches wide! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320443614849 Item number:320443614849 new unused ISE DG8F eightron single digit VFD Here's a new unused ISE DG8F eightron VFD (vacuum fluorescent display) with flying leads, originally sold as Radio Shack #276-065. It's called the "eightron" for the teeny little segment to the right so the '4' crosses nicer than a 7 segment display. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320443610650 Item number:320443610650 FNA 30 Archer 276-060 9 digit 7 segment LED module So old, it's now retro! Here's a new, unused FNA 30 Archer Radio Shack #276-060 teeny 9 digit 7 segment LED display module like those used in the early handheld calculators. Yes, those are magnifiers built into the top of the display! No, I'm not giving up on vintage tech. Quite the opposite, I'm focusing on interesting and fun projects and selling things I don't foresee using. Thank you.

16 years, 8 months

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