IBM PC Connecting to DECNET

Here is a link to a set of screen shot of the autoexec.bat and config.sys for an IBM PC I came across today and the boot screen when these are attempted without the networking hardware attached.. https://www.vintagecomputer.net/IBM/5150/5150_DEC/ Specific to IBMPC to DECNET networking...anyone

Re: Alphastation 200 login (Wayne S)

clues if your Alpha uses VMS https://www.vintagecomputer.net/browse_thread.cfm?id=610 Clues if DEC UNIX https://www.vintagecomputer.net/browse_thread.cfm?id=679 b On Wed, May 18, 2022 at 1:45 PM Craig Ruff via cctech wrote: > > > > On May 18, 2022, at 11:00, cctech-requ...@classiccmp.org

"newer" vintage computers, parts, electronics for sale $100 LARGE lot

https://philadelphia.craigslist.org/sys/d/kennett-square-vintage-computers/7480814347.html I am clearing space at the museum. I really don't want to send directly e-waste so consider making this large lot of 80's-early 2000's items for the low low price of $100 yours. If you're a HAM fest/flea

IMSAI SIO2 cable part number

Hi all... What is the cable partnumber for the IMSAI SIO2? I need to order a set of cables. I thought in all of my boxes and boxes of cables I might have one...but nope. Here is a picture:

Re: Varian 620/L backplane netlist?

Dave mcguire has one at LSSM near Pittsburgh On Tue, Feb 15, 2022, 1:22 PM Mark Kahrs via cctech wrote: > I realize this a rare bird indeed, but would anyone just happen to have a > Varian 620/L backplane netlist hanging around? > > Unless I missed it, the schematics on bitsavers do *not* have

Re: Source for replacement caps in H744 regulators

It would be a lot easier to replace the large circular regulator if you're taking the shotgun approach, and much more likely that the regulator is a source of faults. and it's cheaper. For the h744, 45, 54. BUT measuring things is the best way if you can do it. Pull the values from the

Re: Need picture of power supply mounted in 11/40 cabinet

I have seen both upper and lower...if you fish through you can find what you need here: https://www.vintagecomputer.net/digital/PDP11-40/ https://www.vintagecomputer.net/digital/PDP11-40_full-height/ https://www.vintagecomputer.net/digital/PDP11-40_industrial11/ Bill On Mon, Dec 6, 2021 at 2:03

memory assignment jumpers MM8EJ

I am unable to confirm for sure the memory assignment process for I know without a doubt how to set their page assignments. I can guess but that's dangerous and inefficient. I want to test an unknown core stack, so I need to know which RAM space I am testing. I have a PDP 8e core stack with the

Re: Archiving otrona attache disks

into any problems. I am not sure if this particular disk image results in a bootable disk or if it's a data disk (WordStar files). Bill On Fri, Aug 20, 2021 at 9:09 PM Fred Cisin via cctech wrote: > On Fri, 20 Aug 2021, Bill Degnan via cctech wrote: > > Is there a simh for the otrona at

Re: Archiving otrona attache disks

Fred, Just for the purpose of imaging the disks, is there any reason I cant treat these disks like any other 5 1/4" cpm 360k disk? Bill On Fri, Aug 20, 2021, 9:09 PM Fred Cisin via cctech wrote: > On Fri, 20 Aug 2021, Bill Degnan via cctech wrote: > > Is there a simh for the otro

DEC UNIBUS and use of cassette

Was there a UNIBUS storage system that used a cassette player as the storage device (like an old Panasonic or RadioShack cassette player), rigged to send receive signals via a serial card connection. I.e. the system would have one serial card for the terminal and another serial card on a

Archiving otrona attache disks

Is there a simh for the otrona attache? I have some.disk images created with Dunfield's utility..if not I will try to read them by using the Zorba portable, which is pretty good with varied formats. Bill

Re: CPU Tests

sorry...take that back misread. On Tue, Aug 10, 2021 at 4:55 PM Bill Degnan wrote: > re-do the headsink paste > > On Tue, Aug 10, 2021 at 4:55 PM David Coolbear via cctech < > cctech@classiccmp.org> wrote: > >> My KA655 CPU is freezing during the power up sequence, after test number >> 04: >>

Re: CPU Tests

re-do the headsink paste On Tue, Aug 10, 2021 at 4:55 PM David Coolbear via cctech < cctech@classiccmp.org> wrote: > My KA655 CPU is freezing during the power up sequence, after test number > 04: > > KA655-B V5.3, VMB 2.7 > Performing normal system tests. >

For sale: FANUC Tape Reader and Adapter

I put my FANUC tape reader for sale on Ebay, if anyone might be interested:

Konan The DJ 210 SASI Controller Manual

I noticed that there is no copy on bitsavers of the Konan Corp "The DJ 210" SASI Controller OEM Reference Manual so I posted one on my web site: https://www.vintagecomputer.net/cisc367/Konan_The_DJ_210_SASI.pdf I am not 100% sure, but if I was to guess this info could be applied to repairs for

Re: Early Programming Books

Paul, I have been compiling a library of such. Ioks here, if you are traveling north swing by to review the books on hand. The one that comes to mind is Thinking Machunrs by Berkeley but here on the patio at my parents house I dont know the date. Harvard press put out some early computing books

Re: Early Programming Books

Very good question! Bill On Sun, Jun 20, 2021, 4:44 AM Paul Birkel via cctech wrote: > I know of two early computer (in the stored program sense) programming > books. > > > > 1951: Preparation of Programs for an Electronic Digital Computer > (Wilkes, Wheeler, & Gill) > > 1957: Digital

Re: VT340 Emulation

Reflection 4 should do that, right? Bill On Fri, Jun 18, 2021 at 1:15 PM Douglas Taylor via cctech < cctech@classiccmp.org> wrote: > Does anyone have experience with the Reflection software that will > emulate a DEC VT340 color graphics terminal? > >

Re: Looking for video (or photos) depicting how to remove ASR 33 printer from keyboard

On Tue, Apr 13, 2021, 2:19 AM steven--- via cctech wrote: > Bill said > > I am looking for a video or photos that show how one removes the printer > > from the keyboard safely on an ASR 33. I need to get to the underside of > > the printer levers so I can re-align them. I am getting incorrect

Looking for video (or photos) depicting how to remove ASR 33 printer from keyboard

I am looking for a video or photos that show how one removes the printer from the keyboard safely on an ASR 33. I need to get to the underside of the printer levers so I can re-align them. I am getting incorrect characters when I type over half of the keys. I can see that a few levers are out

Re: Intellec MCS-8 8008 monitor program ROM files

Although this may not be what you're looking for, it's in the ballpark (newer version?): Note the board part number and compare with yours, I don't see off hand which board exactly you have. https://www.vintagecomputer.net/intel/IMM_6-26/ Bill On Wed, Mar 3, 2021 at 11:25 AM Jon Elson via cctech

paper tape archiving

Hi all. I was wondering if there are any good online resources on reading for the purpose of archiving 8-bit papertapes of unknown origin. I have been reading tapes as text and also as binary, 8/n/1 thinking that's going to capture everything. I load into a hex editor, and if necessary convert

windows program to read papertape from reader through serial port

Hi - I read on teraterm's forum or something like it that teraterm is not really equipped to receive an inbound papertape reader dump into an ascii file. What do those of you who have both windows and a tape reader use? RealTerm? If so, what settings? I have been wresting with this for a

Re: Entrex 480 / Digital Computer Controls 116 in New Jersey.

I put in a bid, I have a trailer and space... On Wed, Jul 8, 2020 at 1:55 PM Al Kossow via cctech wrote: > On 7/8/20 9:28 AM, Mattis Lind via cctalk wrote: > > > > Not in best condition but probably worth rescuing. Maybe someone in NJ > area > > that want it? > > Hopefully someone can get those

Re: PDF of FANUC TAPE READER A860-0056-T020 Manual Wtd.

On Wed, May 13, 2020 at 2:32 AM steven--- via cctech wrote: > > > Here is the Ebay auction, I hope the manual is included assuming the > 50-pin > > port is the output port. > > > > >

Re: PDF of FANUC TAPE READER A860-0056-T020 Manual Wtd.

Following up on the results of my searching around. The FANUC A860 reader with A20B controller (the normal set up) has a 50 pin output port. There is a device one can buy that receives the signal from the FANUC's 50-pin port and converts to into 25-pin RS232. The device is called a behind the

Re: PDF of FANUC TAPE READER A860-0056-T020 Manual Wtd.

Not expecting a manual (but I did ask), looking to see if anyone has one, I.have been searching Bill On Tue, May 12, 2020, 4:55 PM Al Kossow via cctech wrote: > On 5/12/20 1:42 PM, Bill Degnan wrote: > > Al, > > Here is the Ebay auction, I hope the manual is included assuming the > 50-pin port

Re: PDF of FANUC TAPE READER A860-0056-T020 Manual Wtd.

Al, Here is the Ebay auction, I hope the manual is included assuming the 50-pin port is the output port. https://www.ebay.com/itm/GUARANTEED-GOOD-USED-FANUC-TAPE-READER-A860-0056-T020/392104833775?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Bill On Tue, May 12, 2020 at 4:33 PM Al

Re: PDF of FANUC TAPE READER A860-0056-T020 Manual Wtd.

> > I checked bitsavers.org but there was no manual there, anyone here have a > PDF or URL of the PDF for the FACIT tape reader A860-0056-T020? > Sorry FANUC not "FACIT" b

PDF of FANUC TAPE READER A860-0056-T020 Manual Wtd.

Turns out the "The Director" tape reader I purchased last week was defective and I got a refund. So I thought I'd try my hand at the FANUC TAPE READER A860. I may need to make a serial cable (?) to connect from the internal connector don't know yet. Or maybe the internal 50-pin port from the

paper tape reader EECO "The Director"

Per my post from last week, after checking out the Decitek readers I ended up getting a used by warrantied EECO "The Director" MT-82 tape reader with a short-height spool for a good price. Here is the manual. http://www.bitsavers.org/pdf/eeco/DOC10006_EECO_MT-82_MTS-82_Mar82.pdf Anyone use this

Re: Wanted, Papertape Reader for Archiving Tapes

On Sat, May 2, 2020, 7:49 AM David Collins via cctech wrote: > I've pulled together details of the controller used with an HP2748 paper > tape reader to dump a bunch of tapes from the HP Computer Museum's > collection with the help of J. David Bryan. > > The details are at this link.. > >

Re: Wanted, Papertape Reader for Archiving Tapes

On Wed, Apr 29, 2020, 12:22 AM steven--- via cctech wrote: > Bill said > > Hi - COVID project I have been attempting to read some old Honeywell > > DDP-516 papertapes using the OP-80A or Teletype reader but it's > inefficient > > and I don't want to damage the tapes. Does anyone have a

Re: Wanted, Papertape Reader for Archiving Tapes

For those of you who have used Dunfield's PTR program and the OP-80A, what PC did you use? I am attempting with a Compaq 486. I apparently have to add resistors to some of the lines to control voltage from the normally outbound parallel port. I may switch to the SOL-20 and use that computer's

Wanted, Papertape Reader for Archiving Tapes

Hi - COVID project I have been attempting to read some old Honeywell DDP-516 papertapes using the OP-80A or Teletype reader but it's inefficient and I don't want to damage the tapes. Does anyone have a reliable papertape reader for sale, or recommend one currently out there on Ebay, for the

Re: DEC OS/8 Question (getting an error TOO BIG INIT)

On Thu, Apr 9, 2020, 6:01 PM David Gesswein via cctech < cctech@classiccmp.org> wrote: > On Wed, Apr 08, 2020 at 03:34:18PM -0400, Bill Degnan wrote: > > Hi, > > . FRTS > > > > ..dumps me to the * prompt ... > > > > *RKB0:ADVENT.LD [return] > > * [esc] > > > > rather than loading ADVENTURE I

DEC OS/8 Question (getting an error TOO BIG INIT)

Hi, I am sure this question has come up before, but can anyone advise an OS/8 change I can run to avoid the following issue (below)? I am unsure if I need to fix my simh INI file or make more space for the program from the OS/8 dot prompt, or FORTRAN * prompt. Running pidp-8i (simh PDP 8i kit)

Re: ISO: Documentation for Interphase SMD 2181 disk controller

On Tue, Apr 7, 2020 at 12:09 PM Al Kossow via cctech wrote: > On 4/6/20 11:37 PM, Josh Dersch via cctalk wrote: > > Subject line says it all. The Lambda uses this as its disk controller > and > > it's looking like the one in mine needs some debugging. There doesn't > seem > > to be any

IMSAI PCS 80 30 ROM (original)

Hi - I am looking for an IMSAI PCS 80-30 ROM image made for with the Tarbell 1011 controller and Persci 277..anyone have this? I received a system and drive but I think the ROM was replaced and since then I was told the system would no longer boot. In the meantime I am going to find a drive and

(Free?) teletype model 32 in cincinatti

ANyone interested in a kind of beat up but complete model 32, and you're in cincinnati to get it today or this weekend let me know by sending me a message through my web site https://www.vintagecomputer.net/contact.cfm This is the fairest way, it takes the requests with a timestamp. I will

Re:

at should give you the pinout, want to borrow it? > > C > > On 2/18/2020 10:02 PM, Bill Degnan via cctech wrote: > > Looking for a DECMATE (VT-278 model) RX278 Floppy Drive Interface > Connector > > cable, part number is RC26N-2L It's a 37 male-25 pin male cable. > >

[no subject]

Looking for a DECMATE (VT-278 model) RX278 Floppy Drive Interface Connector cable, part number is RC26N-2L It's a 37 male-25 pin male cable. Here is photo I took of one (not mine) https://www.vintagecomputer.net/digital/DECmate/DECMATE_VT278_PortsDriveCable.jpg I have the pinouts for the 37-pin

Odd Symptom PDP 8e Running Programs

Hi - I am looking for some help. I have had a PDP 8e with RK05 drives that has run pretty reliably for many years, but after moving it a strange symptom has come up, preventing it from operating correctly. I am hoping someone can advise. Here is an example 1. Power up drives and PDP 8e 2.

Re: LISP implementations on small machines

On Wed, Oct 2, 2019 at 4:39 AM Lars Brinkhoff via cctech < cctech@classiccmp.org> wrote: > Mark Kahrs wrote: > > The first implementation was done for the 7090 by McCarthy (hence CAR > > and CDR --- Contents of Address Register and Contents of Decrement > > Register). > > Or was it an IBM 704? >

Re: Wtd: advice upcoming visit to Bletchley Park / comp museum

> > To echo what others have said: > > * you will have around an hour and a half at the museum. I would say > that's about the right ballpark. > > * there are 2 _entirely separate_ museums on the Bletchley Park site: > ** Bletchley Park: https://www.bletchleypark.org.uk/ > ** The National Museum

Re: Wtd: advice upcoming visit to Bletchley Park / comp museum

On Sat, Jul 6, 2019, 3:57 PM Peter Corlett via cctech wrote: > On Sat, Jul 06, 2019 at 12:54:28PM +0300, Bill Degnan via cctech wrote: > > Hi...I am arriving at Gatwick Airport this weds evening1045pm and I have > a > > 17 hour layover. I'd like to visit the nation

Wtd: advice upcoming visit to Bletchley Park / comp museum

Hi...I am arriving at Gatwick Airport this weds evening1045pm and I have a 17 hour layover. I'd like to visit the national computer museum at bletchley park about an hour north. I see I can rent a car from the airport and drive to a hotel near the museum. There are a few hotels with 24/7

Re: Question about Apple ///

> > > > > > > Looks like this: > > https://share.icloud.com/photos/0NHNkEG9ssPsi65ojivBteKaQ > > > > Does this failure mode ring any bells? Obviously the video signal is > being > > generated well enough to sync a composite output. Any idea whether I > > should start by replacing the CPU or the

Re: setting reply to in VMS 5.x MAIL

correction to my earlier wording: > > So when someone replies to an email from the server I don't want the reply > to come from the actual sender or it will bounce. > I mean I don't want the reply to go directly to the original sender email address (sys...@microvax3100.vintagecomputer.net), I

Re: setting reply to in VMS 5.x MAIL

> > > > > To: cctech > > > Subject: setting reply to in VMS 5.x MAIL > > > > > > Is there a way to set the reply-to value in VMS 5 mail? I want to > send mail as > > > SYSTEM but anyone who receives the message on the outside world who > > > wants to reply I'd like it go to to a different email

setting reply to in VMS 5.x MAIL

Is there a way to set the reply-to value in VMS 5 mail? I want to send mail as SYSTEM but anyone who receives the message on the outside world who wants to reply I'd like it go to to a different email address. I am working to solve the problem myself, but if anyone knows already and can help

Re: CDC modules

why not post a few pics? On Tue, Feb 19, 2019 at 11:50 AM Peter Van Peborgh via cctech < cctech@classiccmp.org> wrote: > Guys, > > I am wanting to determine which CDC (or possibly other) computer some of my > modules came from. If you were a CDC employee around the time of CDC 6xxx > computers,

Re: Wirewrap DIP sockets - any interest?

What is the gold value? On Mon, Feb 11, 2019, 6:11 PM mike via cctech wrote: > Will I would be interested in some. > > Mike Zahorik > (414) 254-6768 > -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of William > Donzelli via cctalk > Sent: Monday,

advice / suggestion wanted PDP 11/40 only boots XXDP, not RT11

My PDP 11/40 suddenly lost it's ability to boot RL02 disks except the XXDP disk. I have two drives, both boot up an XXDP (I have more than one) just fine, but any formerly-working RT-11 (v 5, 5.1, 5.3) no longer boots, it just hangs. I have been troubleshooting, running the 11/40 XXDP tests, but

Re: 11/70 - original or 570 model more desirable?

> > > > > > > Random question: > > Would you have bought this one if it were maroon instead of blue? > > > > > https://www.ebay.com/itm/DEC-PDP-11-70-Datasystem-570-/113553953503?nordt=true_cvip=true > > > As-is for $10K seems a little bit steep for a starting bid. But I haven't > tried to buy an

Re: 11/70 - original or 570 model more desirable?

On Thu, Jan 31, 2019 at 12:57 PM Glen Slick via cctech < cctech@classiccmp.org> wrote: > On Wed, Jan 30, 2019 at 7:49 PM Bill Degnan via cctech > wrote: > > > > Random question > > would you prefer having, if you had to pick only one, the original PDP > > 11

11/70 - original or 570 model more desirable?

Random question would you prefer having, if you had to pick only one, the original PDP 11/70 or the newer "blue cabinets" PDP 11/70, assuming both were complete configurations with racks of storage etc as they would have been sold, more or less. Assume space and power are not issues, consider

Re: More old stuff incoming

Just fixed a 66 Ampeg SB-13 guitar amp, the tubes are not cheap On Wed, Dec 19, 2018, 5:26 PM Al Kossow via cctech > > On 12/19/18 12:17 PM, Bill Gunshannon via cctalk wrote: > > > You'll get my vacuum tubes when you pry them from my cold, dead hands. > > sure thing, > let me know when you croak

Re: Researching IBM rare equipment from 50s to 80s

On Fri, Dec 14, 2018, 6:11 AM E. Groenenberg via cctech < cctech@classiccmp.org wrote: > On Fri, December 14, 2018 11:41, Peter Van Peborgh via cctech wrote: > > Fellow geeks of more mature vintage, > > > > Do any of you guys know whether it is possible to find out to whom any > IBM > > equipment

Re: Manual sources

Thus electronic storage / scanning is probably the best alternative all else considered. Everyone here can hope another like-minded soul will be there to do what needs to be done when opportunity awaits I saved a healthy run of early popular electronics mags from the wilmington, delaware

Re: Scan of Micro Peripherals Inc MPI 91/92 Product Manual Avail?

On Fri, Oct 26, 2018 at 1:21 AM Al Kossow via cctech wrote: > > > On 10/25/18 4:00 PM, Eric Smith via cctalk wrote: > > > If you need a sheet-fed duplex scanner for B-size, expect to spend a > pretty > > good chunk of change even for a used one. > > > > I've been through several million pages

Scan of Micro Peripherals Inc MPI 91/92 Product Manual Avail?

I got a request for a scan of the Micro Peripherals Inc MPI 91/92 Product Manual. I have the manual, I will scan it and post if no one has a copy. But I don't want to go through the effort if it exists somewhere already. I noticed on bitsavers there was no MPI nor Micro Peripherals Inc section so

Re: Rayethon Computer AN/FYK9 CMI Store 33

A complete general-purpose system complete with asr33 and XRAY compatible papertapes would be awesome and pretty rare. Are there any complete 706 or 703s out there I wonder. On Mon, Sep 24, 2018, 5:46 PM Al Kossow via cctech wrote: > sadly all that is there is some Data Products core memory

Re: Unknown US manufacturer - try again

RCA made boards of this color and size, but not an exact match. Same number of pins, similar blue.Not claiming it's RCA, but it's the closest thing I have. Here is one from a 1974ish COSMAC Microkit: http://www.vintagecomputer.net/rca/COSMAC/RCA_GFA-3901808_front.jpg On Wed, Sep 12, 2018 at

VCFMW - looking for a BC80D-5K (DECMATE) disk cable/OS8 disks (RX02)

I have asked Paul Anderson to see if he has a BC80D-5K cable for a DECMATE VT278 (same as VT78) to RX02 pedestal twin drive. I am also looking for the OS/8 disks. I am pretty sure my VT278 works, I have some spare parts too, just need the cable and the disks hopefully to have a working OS/8

DEC PDP 11 RK05 DEC custom (?) bootstrap board

I have what I believe to be two DEC RK05 bootstrap boards each with a ROM labeled 802350 A. UNIBUS. The plastic handle tabs are Digital Equipm.'s but it could be an OEM as there is nothing printed on them. On the board is printed on what would be the bottom front side R-K ABBR BOOT P.C. BOARD

vintage printers in Colo Springs

If anyone is interested in a Wang Daisy Wheel Printer, Diablo same, Star SG-10, TRS 80- DWP 510 and a few other things like that let me know and I will pass your info along to a guy who contacted me through my web site. I do not know the guy. I am not interested in these. This person implied

AIM 65 Cassette Test Program

Hi all...I got the following through my web site. Does anyone have a good known-working test program for an AIM 65 cassette that I can attempt and or send in response? I still have to set mine up and attempt to reproduce, but someone here likely has more experience, it has been at least 5 years

Re: zilog system 8000

IIRC that was one of the first donations to our club back in 2005 On Fri, Jul 20, 2018 at 1:04 AM Evan Koblentz via cctech < cctech@classiccmp.org> wrote: > > >> A very big and expensive door stopper without OS tapes. > >> But most importantly: the CPU board is missing! > >> The card in slot 2

Re: New Listings Added to Sellam's Virtual Warehouse of Computing Wonders

Does the cmc ada 1450 per interface come with the cassette? I have a number of the earlier cassettes but not the 1450 On Fri, Jun 15, 2018, 3:04 PM Sellam Ismail via cctech < cctech@classiccmp.org> wrote: > New items added for June 15, 2018: > > Panasonic FT-70 Executive Partner > > Radio Shack

Apple (Lisa 2/10) MAC XL UNIX 5

I have a diskette labeled UNIX SYSTEM V VPI UNIX disk 'A' (vpi)* 8/85 UniPress Software, Inc. I have the small installation manual that talks about inserting the disk to serialize it, and how to install UNIX onto the Lisa 2/10 in Mac XL Mode. It is a small implementation of AT UNIX V. The disk

PDP 8i in NJ on Ebay

https://www.ebay.com/itm/Pdp-8i-Computer-With-Tape-Readers/253588804132 I went to check this outthis is they guy with 10 PDP 8i's in a barn. Looks like he cleaned one up. I have more pictures on my web site, I had posted them here before, but I thought they were overpriced

One wafer-thin mint (VAX 4000-200 for sale)

The VAX 4000-200 I exhibited two years ago at VCF East is up for sale: Restoration Notes: http://www.vintagecomputer.net/browse_thread.cfm?id=608 I don't need it as much anymore now that it's pretty much a completed project. It's very upgrade-able though if you have the desire to boost

Burroughs L8000 San Antonio TX

Anyone interested in buying a Burroughs L8000, currently San Antonio TX? If so, contact me via http://www.vintagecomputer.net/contact.cfm and I will put you in touch with the person who contacted me. I already have two or three of these sojust kidding not personally interested in this. Bill

Re: DEC BA213 and BA213 S-boxes?

On Sat, Mar 31, 2018, 4:26 PM Glen Slick via cctech <cctech@classiccmp.org> wrote: > On Sat, Mar 31, 2018 at 9:04 AM, Bill Degnan via cctech > <cctech@classiccmp.org> wrote: > > > > FYI - Not sure if I mentioned this but I too am working on setting up a > > D

Re: DEC BA213 and BA213 S-boxes?

On Sat, Mar 31, 2018 at 11:45 AM, Douglas Taylor via cctech < cctech@classiccmp.org> wrote: > Ethan; > > I have owned both BA213 and BA215 microvaxes. The one recurring problem I > had was with the power supplies, H7868 I think the number is. > Luckily, I picked up a couple of Dec Serv 550's

AlphaCom Terminal

The 1969-71 AlphaCom terminal is a candidate for https://terminals-wiki.org/ Here are some photos http://www.vintagecomputer.net/browse_thread.cfm?id=502 I got this from the inventor's son. I am unsure how many of these were made or put into production. The terminal kind-of worked for a while,

Re: NEC TK-80A Ref Manual Wanted

On Tue, Mar 6, 2018 at 2:29 PM, allison via cctech <cctech@classiccmp.org> wrote: > On 03/06/2018 12:09 PM, Bill Degnan via cctech wrote: > > Looking for a reference manual to the NEC TK-80A trainer. Rev A. > > > > This one: > > http://bugbookmuseum.blogspot.com

NEC TK-80A Ref Manual Wanted

Looking for a reference manual to the NEC TK-80A trainer. Rev A. This one: http://bugbookmuseum.blogspot.com/2015/12/computer-tk-80-single-board-8080.html Thanks Bill

Re: Reading a PDP-11 RL02: Anyone Around the U.S. West Coast?

What is the OS of the disks, what system was this disk used to create/save files to the RL02? Bill On Fri, Feb 9, 2018 at 6:24 PM, Paul Hardy via cctech wrote: > Greetings, > > I have an old PDP-11 RL02 that I would like to read, to preserve its data > for archival

who is in this picture? (VCF 199x)

https://retropopplanet.files.wordpress.com/2011/06/vintage-computer.jpg I was not at this particular VCF out in California in the later 90's when this photo of a DEC exhibit was taken; the original picture from vintage.org is no longer hosted. Does anyone have a copy of the old vintage.org