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

by binarydinosaurs＠gmail.com

Hi folks, For the last few weeks I?ve been helping the owner of a PPG2.2 synthesizer get the ?computer? side of it, a Waveterm A, running. The Waveterm is a 6809-based single board computer running FLEX that was designed to use 8? drives, then at some point they modified it slightly to use 5.25? HD drives instead but changed very little - to connect up to the main board they made a 34-50pin adapter. The drives are YE-Data YD380 with a Shugart interface so without some sort of signal bender like a DBit FDADAP I couldn?t just plug them into a PC. However, the YE-Data YD380B has an IBM interface so we used one of those, same mechanism so we figured it should work. All the disk images for the Waveterm have been created using programs written by PPG users. For some reason any disk we wrote with them wouldn?t read correctly in the machine itself UNTIL we made a new image of that disk using Teledisk 2.15 then re-wrote it back to the same floppy. My question is why should that make so much of a difference between working and non-working disks? Trivia: for anyone aware of the 80s UK Music industry this very machine was used for the hit ?You spin me round (like a record)? by Dead Or Alive. -- adrian/witchy Owner of Binary Dinosaurs, the UK's biggest home computer collection? t: @binarydinosaurs f: facebook.com/binarydinosaurs w: www.binarydinosaurs.co.uk

7 years, 11 months

4
7
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Weird Lear-Siegler ADM-3A board

by binarydinosaurs＠gmail.com

Hi folks, A friend of mine has said ADM-3A and is baffled by the tiny board it contains, not the usual ?covering entire base? discrete logic board they normally have. Centre of this board is the Nat Semi NS405 ?display processor on a chip? which is obviously why the board is so small but neither of us have seen this before in a 3A. Anyone else? Pic at http://www.binarydinosaurs.co.uk/tonyADM3a.jpg <http://www.binarydinosaurs.co.uk/tonyADM3a.jpg> cheers! -- adrian/witchy Owner of Binary Dinosaurs, the UK's biggest home computer collection? t: @binarydinosaurs f: facebook.com/binarydinosaurs w: www.binarydinosaurs.co.uk

7 years, 11 months

6
10
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eBay: HP 21MX E-Series Minicomputer 2109B

by jnc＠mercury.lcs.mit.edu

Figure you HP fans will already have seen this, but in case not: https://www.ebay.com/itm/332695779697 Noel

7 years, 11 months

1
0
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IBM junk

by cctalk＠ibmjunkman.com

4th sentence. Praise the computer gods I found someone that wanted it all.

7 years, 12 months

2
1
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IBM junk

by cctalk＠ibmjunkman.com

I believe the 1130 used the 2315

7 years, 12 months

1
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IBM junk

by cctalk＠emailtoilet.com

Well, not really. CHM only wants my punched card collection (4000+ cards) which they are getting when I croak. Did not want the other stuff. Livingcomputers only interested in miniatures. I will swear I sent a note to Al Kossow about manuals. No reply.

7 years, 12 months

1
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DEC Mouse replacement

by dj.taylor4＠comcast.net

I would like to have a couple more DEC Mice for some Vaxestations I have, but they seem to be pretty rare.? At present I only have one mouse and I move it from machine to machine. The protocols for the DEC mice and the standard PS/2 mice don't seem to be that much different. Is it possible to use an arduino to translate? PS/2 mouse output and then send it to the vaxstation so that will it mimic a classic DEC mouse?

7 years, 12 months

8
11
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More tapes - This time all Tektronix 405x series

by mmcgraw74＠gmail.com

I was successfull at capturing all the files from a 4051 Graphics T1 tape last weekend. Here is the link to a couple of photos of the process: Capturing Tektronix 4051 Graphics T1 tape files to laptop <https://drive.google.com/open?id=18hROXB28PD9Z_GYDNNSXGPK4Pv7GQD8w> First I replaced the disintegrated drive belt with one from a NOS 3M DC6250 cartridge. I used my 4051 to PC serial transfer program on my recently repaired and upgraded 4054A. I set the comm speed of the 4054 serial interface to the maximum 9600 baud, but as it is 7-bit, my program changes all 32 Tektronix control characters to "~X~" where X is the ASCII character corresponding to that control character. This way I don't lose any of the Tektronix 405x text formatting in the transfer. I was using ExtraPutty on the laptop to capture the program text strings, then copied the statements into Notepad++ and saved each file. I am also working on a Tektronix 4051/52/54 compatible GPIB MicroSD flash drive that will emulate the Tektronix 4924 tape drive - for all of us with these computers to use - since both the tapes and drives are very problematic after all these years. This flash drive contains an Arduino with my code - based on the GPIB flowcharts and info in a 4051 and 4052 GPIB manual. You will be able to use the existing 405x program statements with @Y for the drive GPIB address - since I don't know how to write a ROMPACK for any of the series :) I plan to organize the different captured tapes in directories on the flash - and that may mean using a non-4924 GPIB secondary address for that command. It also likely means I need to change any tape commands in each program to use the flash drive GPIB address. That's why I wanted to capture one of the Tektronix tapes with a menu - is to ensure I could get those files to work on my flash drive design. Monty McGraw

7 years, 12 months

4
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New Listings for Sellam's VWoCW - June 20, 2018

by sellam.ismail＠gmail.com

Hello Folks, More stuff! New listings for June 20, 2018 Beck-Tech C64 ROM Emulator 80486 Multi-Master Card H214 8Kx16 Planar Core Memory M7504 DEQNA Ethernet Controller VS40X 4 Plane Color Option Bit Boffer BB-1 Ricoh V20 MMI Development PCB EXT 01 slot extender board Diablo Systems RGEXT slot extender board Mystery Memory Board Lexar 48K Memory Expansion Board National Semiconductor COP402N Processor I/O Board National Semiconductor COP402N Processor I/O Board National Semiconductor 8080 Processor Board Set Quantum Q2030 hard drive logic board Anderson Jacobson ADAC 1200 Acoustically Coupled Modem IEV Corp. VIP-2000 InfoChip Systems 13-000025 Compression Coprocessor Board International TeleText Communications PC TeleText Decoder Generic Network Card Gould K-20 Logic Analyzer Tektronix C-5A Oscilloscope Camera List with links to individual items is here: https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_HJ5oMKuab4zrApI_hi… (Please note: the links get screwy as I add/delete items because they are not anchored to the actual item but to the cell range, still trying to work on a fix for this. If you link to an item and it's just not there it means it has sold.) Instructions, FAQ, everything is at the link above. E-mail directly for any questions. Thanks! Sellam

7 years, 12 months

3
5
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New Listings for Sellam's Collection Sales

by sellam.ismail＠gmail.com

Hi Folks. I've reorganized my sales listings into a Google Sheets set. The introductory page is here: https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_HJ5oMKuab4zrApI_hi… Use the tabs on the bottom of the sheet to navigate to the various "rooms". New items have been added and are listed here: https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_HJ5oMKuab4zrApI_hi… New items are always added to the New Arrivals Niche, so that's the first place you should check when you visit my virtual online warehouse. I will post a message to this list and the VCFed forums whenever new items are listed, which will occur more regularly. As always, please inquire directly to me via e-mail for the fastest response. Thanks! Sellam

7 years, 12 months

8
10
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More tapes - This time all Tektronix 405x series

by mmcgraw74＠gmail.com

I was successfull at capturing all the files from a Tektronix 4051 Graphics T1 tape last weekend. Here is the link to a couple of photos of the process: Capturing Tektronix 4051 Graphics T1 tape files to laptop <https://drive.google.com/open?id=18hROXB28PD9Z_GYDNNSXGPK4Pv7GQD8w> First I replaced the disintegrated drive belt with one from a NOS 3M DC6250 cartridge. I used my 4051 to PC serial transfer program on my recently repaired and upgraded 4054A. I set the comm speed of the 4054 serial interface to the maximum 9600 baud, but as it is 7-bit, my program changes all 32 Tektronix control characters to "~X~" where X is the ASCII character corresponding to that control character. This way I don't lose any of the Tektronix 405x text formatting in the transfer. I was using ExtraPutty on the laptop to capture the program text strings, then copied the statements into Notepad++ and saved each file. I am also working on a Tektronix 4051/52/54 compatible GPIB MicroSD flash drive that will emulate the Tektronix 4924 tape drive - for all of us with these computers to use - since both the tapes and drives are very problematic after all these years. This flash drive contains an Arduino with my code - based on the GPIB flowcharts and info in a 4051 and 4052 GPIB manual. You will be able to use the existing 405x program statements with @Y for the drive GPIB address - since I don't know how to write a ROMPACK for any of the series :) I plan to organize the different captured tapes in directories on the flash - and that may mean using a non-4924 GPIB secondary address for that command. It also likely means I need to change any tape commands in each program to use the flash drive GPIB address. That's why I wanted to capture one of the Tektronix tapes with a menu - is to ensure I could get those files to work on my flash drive design. Monty McGraw

7 years, 12 months

2
1
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Tektronix terminals, Tekxpress v8?

by carlojpisani＠gmail.com

hi I have a Tek XP400, and a Tek XP217. They are X11-terminals made in 1990s (thus unable to support GTK-v2) anyway, the XP217 runs with TekXpress v7, I have a copy for my tftp-boot server and the terminal is happy with it; whereas the XP400 says it needs a more recent software. does anyone happen to have TekXpress v8, or NCD bridge v4? let me know Thanks

7 years, 12 months

1
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Website Relocation

by cube1＠charter.net

FYI, the service under which I have been hosting my website for many, many years is going away. So, webpages.charter.net/thecomputercollection Has been relocated to www.computercollection.net (The content is unchanged for now). This will also give me the freedom to eventually post lots more (and muc better) photos, put up my manual database and other databases at some point, and all sorts of cool things over time, but at present I am focused on my capture of the IBM 1410 Automated Logic Diagrams (ALDs). (BTW, the capture application (C#) is written, though still being debugged/improved, and I have already captured one volume of drawings, and am testing VHDL generation from the captured information.) JRJ

7 years, 12 months

1
0
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DECServer 200/DL board?

by aek＠bitsavers.org

Is this a 200/DL (RS423 data lines only) board? https://www.ebay.com/itm/352381870034 A normal 200 would have two large IDC connectors on the pcb for serial I/O

7 years, 12 months

5
4
0 0

DEC VT 420 comm cable?

by w2hx＠w2hx.com

Hi friends, I just received a refurb'd VT-420 with green screen. I see that I need a special 6 pin/modular-type cable for the comm port. I located the adapter to get to DB25 ( https://www.ebay.com/itm/262041938994 ) but I need the interconnecting cable. Anyone know what it is called? Anyone have one for sale? 73 Eugene W2HX

7 years, 12 months

7
9
0 0

Assessing Plastibands for QIC Tension Band Replacement

by microtechdart＠gmail.com

If anyone is interested, I just published a few videos showing my testing of PlastiBands for QIC Tape Cartridge replacement. https://youtu.be/irOrR-ZYwjw and https://youtu.be/GVsYHLvCvZY A special thank you to CuriousMarc, Al Kossow, and Chuck(G) for their help, leadership and inspiration in this area! And my page dedicated to QIC Tension Bands... http://qicreader.blogspot.com/p/drive-belts.html As always, I welcome feedback, and hope this is of value to some here. Best always, -AJ -- Thanks, AJ Palmgren http://QICreader.com

7 years, 12 months

3
2
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Did anyone on the list get these tapes?

by aek＠bitsavers.org

https://www.ebay.com/itm/1372243559202 basic.p11 syslod.p11 rdt.p11 all from mid 1971 original RSTS? hope the person who got these knows what they bought

8 years

7
11
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Lots of old DEC stuff

by sales＠elecplus.com

This guy is an eBay seller. I think he is a recycler. He has over 185,000 DEC items listed! Not affiliated with seller, etc. https://www.ebay.com/sch/m.html? <https://www.ebay.com/sch/m.html?&_nkw=DEC&_sacat=0> &_nkw=DEC&_sacat=0 Cindy Croxton --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

8 years

6
6
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HP 7980 tape drives

by sieler＠allegro.com

Hi, Anyone interested in three HP 7980 tape drives (9-track, 1600/6250 BPI, IIRC). One HP-IB interface, two SCSI interfaces. Rack mountable. Most likely local pickup only, in Redwood City. thanks, Stan

8 years

3
4
0 0

68020 adapter

by carlojpisani＠gmail.com

hi guys I need something like this (1) anyone know where can I get one? (1) https://literature.cdn.keysight.com/litweb/pdf/64748-90901.pdf

8 years

2
1
0 0

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

by sellam.ismail＠gmail.com

New items added for June 15, 2018: Panasonic FT-70 Executive Partner Radio Shack TRS-80 Color Computer Mini Disk Atari 850 Interface Module Atari 1010 Program Recorder Rana Systems 1000 Floppy Disk Drive Axiom ParallAx CD Printer Interface Apricorn external parallel port interface Personal System/2 and Personal Computer BIOS Interface Technical Reference NETBIOS Application Development Guide IBM Technical Directory Cromemco Z2D Computer System Hayes Micromodem 100 DEC RX50AA IBM Type 4869 External 5.25" Disk Drive Byte-Back MD-1 Modem Kit Radio Shack TRS-80 Modem I Tandy Serial Mouse (boxed) Connecticut microComputer Inc. ADA 1450 PET Printer Interface Control Data Disk Drive Tester/Formatter Cromemco Z2D case/power supply/backplane COMPAL-80 case/power supply/backplane List with links to individual items is here: https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_HJ5oMKuab4zrApI_hi… Instructions, FAQs, everything is at the link above. E-mail directly for any questions. Thanks! Sellam

8 years

2
1
0 0

Modifying microcode

by kylevowen＠gmail.com

Has anyone attempted to reassemble and update the microcode on a MicroVAX? Seems like there's enough stuff here to possibly do it: http://simh.trailing-edge.com/semi/ucode/ I'm thinking about trying to find a microcoded architecture to play with before I design something around the Intel 3000 series. I've got a MicroVAX 3800, so I suppose I could run MICRO2 to assemble the aforementioned microcode. But then what? I assume PALs would have to be burned to implement the new microcode. Or is it more complicated than that? I don't have a PDP-11/60, unfortunately. I do have an 11/45, though...so with this modification, I suppose one could have some fun: http://repository.cmu.edu/cgi/viewcontent.cgi?article=3241&context=compsci Thanks, Kyle

8 years

17
34
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eBay search fail

by jnc＠mercury.lcs.mit.edu

So someone mentioned this to me: https://www.ebay.com/itm/222941705847 Now, the crazy thing is that I religously do a search for "PDP-11" for newly listed items on eBait at least once a day - and this never showed up! I just did a search for sold "PDP-11" items, and it's not showing up there either - although a search for sold "PDP-11 parts" turns it up! Anyone have any idea why it didn't turn up? That is a regular '-', not an mdash or anything, and those are 1's, not lower-case l's. And it does show up in the search for "PDP-11 parts". So I can only conclude that somehow eBait's search function blew out somehow? Anyway, someone got a total steal: at least _3_ H960's, a TU10, and an -11/45 (can't tell if there's an FP11) - and who knows what else is hidden! Noel

8 years

6
6
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Announcement: VCF Midwest 13!

by silent700＠gmail.com

Summer is almost here and that means it's time to get it in gear and start planning our next Vintage Computer Festival Midwest. Astute readers will note that this announcement comes many weeks later than in past years, but rest assured there is still plenty of time remaining to make your travel plans, reserve a table or get yourself into the mood for a full weekend of classic computing fun. Here are the necessaries: What: The Thirteenth Vintage Computer Festival Midwest When: September 15-16, 2018 (note that that's one weekend later than the usual dates!) Where: The Holiday Inn Elk Grove Village, Elk Grove Village, Illinois - about 30 minutes west of Chicago with a free shuttle bus from ORD! URL: http://vcfmw.org More info for the uninitiated and VCFMW veterans alike: - We do not charge admission. Thus, we are a community-supported show, so we humbly beg your kind donations, which can be made via two different links at vcfmw.org, or at the show. - Always an entertaining spectacle, there will once again be an auction! This is the other way we fund the show, so your donation of old computers (or anything even marginally related) is greatly appreciated. If it's a little too nice to put in the Free Pile, please consider donating it as an auction item. - Typical show hours are 9am Saturday 'til late night, and then 9am-4pm on Sunday (clean-up begins around 3pm). Early load-in is usually available on Friday afternoon, hours at the hotel's discretion. - The show really begins on Friday night, at least for exhibitors. We typically go for an informal group dinner and return to the hotel to complete setup. Don't worry if you're getting into town late, you can still set up Friday night (until 11pm or so). If you're arriving Saturday morning, your table will still be reserved. - Tables fill up quickly! If you'd like to exhibit, please fill out the table reservation form at http://vcfmw.org/signup.html. If the form is closed, it's because the buffer filled up and we're still processing requests. We don't want to reserve space we don't have! - Hotel rooms at the Holiday Inn are available at the group rate of $92/night via the link at vcfmw.org, or by calling the hotel at the number listed on our site. If the online room block is full, please try calling the hotel directly. - There is an on-site restaurant in the hotel that serves breakfast through dinner and a bar that is open late-ish. Consensus seems to be that they have good food and not having to leave the hotel to eat is a big plus. Feel free to forward this email or post its contents to your favorite forum. We'll see you in September! -j Twitter: https://twitter.com/vcfmidwest Facebook: https://www.facebook.com/events/248644859019545

8 years

2
1
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Apple (Lisa 2/10) MAC XL UNIX 5

by billdegnan＠gmail.com

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&T UNIX V. The disk is bad. Anyone have a process for recovering or reading an Apple Mac XL disk? This seems like a piece of software that should be preserved, as a curiosity. Does anyone actually have a working copy of UniPress Software UNIX for the Lisa XL? Bill

8 years

2
1
0 0

CDC 9762 drive, alignment disk and exerciser on Ebay.

by mattislind＠gmail.com

Someone is selling a drive that was just taken out of service ! And alignment disks and exercisers for CDC 9762 (it doesn't look like a 9766 / RM05 even though it says so in the listing) Probably useful to RM02 or RM03 owners as well. https://www.ebay.de/sch/rbembenek1/m.html?item=142830473695&rt=nc&_trksid=p…

8 years

1
0
0 0

VCF PNW 2018: Video is finally available!

by mbbrutman＠brutman.com

Video from our speakers at VCF PNW 2018 is now available. For those of you who have been asking thanks for being patient https://www.youtube.com/c/VintageComputerFederation501c3 Regards, Mike (/me slowly builds up the courage to start planning for VCF PNW 2019)

8 years

1
0
0 0

pdp8e rack header wanted (will trade for PDP 11 header)

by billdegnan＠gmail.com

Anyone want to trade a pdp8e rack header for a PDP 11 (pink/red) header? Does not have to be perfect. I am located in Landenberg, PA USA. I have other DEC rack-related parts to trade for this if that's not what you want. b

8 years

1
0
0 0

SunBlade 2000 workstations

by lyokoboy0＠gmail.com

I have 3 sunblade 2000 workstations for sale. They arrived as surplus equipment. One of the machines does not power on, the other two boot up to sun os with proprietary software that was used from the company they came from. THe drives must be wiped before i send them out. They are quite heavy, so that will be a factor in shipping. I am open to offers on a single machine or the whole lot, if you have any questions feel free to ask. I have some spare cpu's that fit the machines as well, although they all appear to have 2 cpu's installed already. --Devin D.

8 years

1
0
0 0

VCF East Photo Thread

by silent700＠gmail.com

Many are appearing on the VCFed mailing list already. Here are mine, with separate sets for the non-computer (but still interesting) stuff: http://silent700.blogspot.com/2018/05/vcf-east-2018.html I had a good time and recommend the show to all who can make it out there. -j

8 years

4
4
0 0

TI System V?

by derschjo＠gmail.com

Anyone have any idea where one might track down a copy of TI System V for the S1500 series? I've had these two TI UNIX systems for awhile now, a TI S1505 and a TI S1507 (68030 and 68040-based, respectively). They came without hard drives or OS media and so they've basically been doorstops. I asked around about OS media back when I got them (in 2013) and at the time I got no leads; I'm guessing things probably haven't changed, but I figured I'd ask again just in case... Seem like nice machines, wish I could do something with 'em... - Josh

8 years

2
1
0 0

ISO: Seattle Computer Producs 300 S100 board

by ethan＠757.org

I jumped the gun and bought a SCP 200B board. I grew up a DOS kid, so figured it would be fun to run 86-DOS. I found out about the SCP 300 board, that contains the boot loader and serial port. Anyone have an extra they would be interested in unloading? Thanks -- : Ethan O'Toole

8 years

1
0
0 0

brand new DC600A data cartridges

by elson＠pico-systems.com

Anybody need DC600A data cartridges? These are still in the carrying case, wrapped in the sealed wrapper. I have a box of 5. They are from early 1990's. I also have one used cart, but it is pretty dusty. Jon

8 years

1
0
0 0

VAX 4000 PSU (H7874) Schematics

by aaron＠aaronsplace.co.uk

I am trying to repair a VAX 4000 power supply. Does anyone have the schematics? I can't find anything on BitSavers and I'm not completely convinced it was even designed by DEC. The VAX turns on and the status LED stays on F. The DC lamp does not illuminate on the PSU. 5V rail appears fine but there is nothing from the 12V rail. There were some *very* dodgy looking caps which I have replaced, and some *very* exploded MOSFETs, which I have also replaced. If anyone has schematics, or know where I might find them, it would be much appreciated. Thanks, Aaron.

8 years

4
7
0 0

Looking for an ex-Sun employee; Alan Charlesworth

by jplist2008＠kiwigeek.com

Hey all; I'd love to talk to Alan Charlesworth, who used to work for Sun and (I believe) CRS before that. I'm interested in his perspective on some historical happenings and Sun design work. If anyone knows him and might be willing to get me in contact with him I'd very much appreciate it. Unfortunately while I can find several papers he's written they all provide his Sun address, and there are three other prominent Alan Charlesworths that are making searching for him difficult. My thanks for your help; - JP

8 years

1
0
0 0

New Listings for Sellam's Collection Sales

by kurt＠hamm.me

I, too, have emailed Sellam with no response. But, I guess I am adding to the "broad-based whine" Wow. Kurt. ---------- Forwarded message ---------- From: Sellam Ismail <sellam.ismail at gmail.com> To: Randy Dawson <rdawson16 at hotmail.com> Cc: "General Discussion: On-Topic and Off-Topic Posts" < cctalk at classiccmp.org> Bcc: Date: Wed, 6 Jun 2018 21:59:42 -0700 Subject: Re: New Listings for Sellam's Collection Sales Hi Randy. I have stuff that you can't find on eBay. And I am not offering the eBay experience. This is me, Sellam, you are dealing with. When I can find actual closing sales online (I need some place to start), I generally go on the lower end of the mean of the data I find. It's a collectors market, sometimes I'm high, sometimes I'm low, but I'm trying. Do you know how to assess the value of items as diverse as what I'm listing? I do, it's a lot of work. Come help out if you have the time, I'll trade you for stuff. The listed prices are what I'm asking, as stated. I'm always open to offers, as stated. I price fairly, to move it, and if something sits for a while, you have a good chance of negotiating a price more to your liking, if you ask, but know that I am willing to sit on some things. I invested a lot of time, effort, blood, sweat, tears and money into my collection over many years. I'd like to recoup some of it. All you have done is propounded a broad-based whine. if there's something that interests you but the price is not right, let me know. I'm making many sales and many deals, stuff is moving. Ask and ye may well receive. Just be reasonable. Sellam On Wed, Jun 6, 2018 at 7:57 PM, Randy Dawson <rdawson16 at hotmail.com> wrote: > Inspired by ebay for all the items there that never sell for the asking > price. > > > C'mon Sellam, you want to get out, how about lowering the prices a bit to > move things along? > > > ------------------------------ > *From:* cctalk <cctalk-bounces at classiccmp.org> on behalf of Ed Sharpe via > cctalk <cctalk at classiccmp.org> > *Sent:* Wednesday, June 6, 2018 7:50 PM > *To:* sellam.ismail at gmail.com; cctalk at classiccmp.org; > cctalk at classiccmp.org > *Subject:* Re: New Listings for Sellam's Collection Sales > > do the prices keep increasing? > > In a message dated 6/4/2018 10:02:53 PM US Mountain Standard Time, > cctalk at classiccmp.org writes: > > > Hi Folks. > > I've reorganized my sales listings into a Google Sheets set. The > introductory page is here: > > https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_ > HJ5oMKuab4zrApI_hiX0pNmy48/edit#gid=0 > > Use the tabs on the bottom of the sheet to navigate to the various "rooms". > > New items have been added and are listed here: > > https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_ > HJ5oMKuab4zrApI_hiX0pNmy48/edit#gid=949372371 > > New items are always added to the New Arrivals Niche, so that's the first > place you should check when you visit my virtual online warehouse. I will > post a message to this list and the VCFed forums whenever new items are > listed, which will occur more regularly. > > As always, please inquire directly to me via e-mail for the fastest > response. > > Thanks! > > Sellam >

8 years

1
0
0 0

CDC 6600 display character generation

by jnc＠mercury.lcs.mit.edu

Hi, I'm hoping someone here knows the low-level nitty-gritty on how the characters on the CDC 6600 console CRTs were generated. Thornton, "Design of a Computer", says "Control of the beam .. is provided by electrostatic deflection ... electronically converting from the symbol .. to deflection voltages", but alas, doesn't say how that conversion is done. And I looked in some CDC 6600 documentation online, alas, even less detail. But looking at the characters (reproduced on the dust jacket), the curves sure make it look like it wasn't anything simple (e.g. using display vectors, as one source indicated). Does anyone know? (BTW, the VT11 in DEC's GT40 used bit maps for its built-in character geneator, and the hardware did tiny raster zones to display them!) Noel

8 years

10
20
0 0

ISO: DD11-DF backplane

by derschjo＠gmail.com

Hi all -- I finally tracked down the EIS option for my 11/40 and I have it up and running nicely (Ultrix-11 ATM, but I'll be playing with other stuff). Right now I only have a 4-slot DD11 backplane for SPC/MUD boards and I'd like a bit more space for expansion. I have a few DD11-DK backplanes but without modifying the cabling it won't work in a BA11-F chassis. If anyone has a DD11-DF they'd be up for trading for the -DK variant (or for something else) please drop me a line. Thanks! Josh

8 years

2
2
0 0

Whence 556?

by tshoppa＠wmata.com

The 729 CE manual quotes 555 BPI. I?m not sure when it became 556. http://bitsavers.trailing-edge.com/pdf/ibm/magtape/729/223-6845_729_CEman_1… The IBM 728 was 248 BPI. Before that it was the nice round number 200 BPI. I tried permutations of standard IPS and round number data rates and don?t see anything that yields exactly 556BPI. Tim

8 years

4
3
0 0

Weird Lear-Siegler ADM-3A board

by jnc＠mercury.lcs.mit.edu

> Jon Elson > How/where should I submit this? This is now available through here: http://gunkies.org/wiki/Term-Mite_ST_Smart_Terminal I put in a little infrastructure around it (articles on the Term-Mite, NS405, etc), using info I dug up online. Noel

8 years

4
5
0 0

CDC 6600 display character generation

by jnc＠mercury.lcs.mit.edu

> From: Toby Thain > It's suggested there (without any proof though) that the CDC used a > Fourier process > ... > I'd be very interested to know what you find out about the circuitry. Someone very kindly pointed me at: http://www.bitsavers.org/pdf/cdc/cyber/cyber_70/fieldEngr/60125000C_6602_66… (although why it's in the Cyber70 folder, I'm not quite sure :-). I don't completely understand it (it's only drawings, no text, and the notation is unfamiliar), but I think I get the general drift - and it's pretty baroque! Very briefly, it appears to me that characters are generated from short vector-type strokes placed in a 7x7 matrix, with each stroke being encoded as motion of 0, 1 or 2 'boxes', both horizontally and vertically, from the 'box' of the end of the previous stroke. A character can contain up to 22 strokes, but most seem to average about dozen or so. The pronounced rounding which I noticed in the characters must be caused by the limited bandpass of the A-D system, amplifiers, etc - it can't actually do a sharp corner when going from e.g. a vertical stroke to a diagonal one. Or something like that.. :-) Noel

8 years

4
3
0 0

Sudden death of the HP 239X terminals by whiskering

by hp-fix＠xs4all.nl

Inspecting a newly acquired HP 2392A I found out the chassis was prone to whiskering all over the chassis. Whiskers are small metal hairs growing from pure metal (zinc or tin) and can when they connect to a power line create a shortage and electric arc damaging the electronics. Made some pictures and placed them in: https://www.flickr.com/photos/hp-fix/41897770664/in/dateposted-public/ It's best to remove them by using scotch brite or fine sanding paper, after that paint or coat the chassis with a clear paint or other nonconducting paint. More info about whiskering can be found at: https://nepp.nasa.gov/whisker/ https://en.wikipedia.org/wiki/Whisker_%28metallurgy%29 -Rik

8 years

2
1
0 0

WRQ Reflection 4+ DOS

by Flash688＠flying-disk.com

While cleaning out my office, I found a brand new, unopened copy of WRQ Reflection 4+ version 5.0 for DOS. It provides (per the box): Accurate emulation of Digital VT340, VT320, VT220, VT241, VT102, and VT52 terminals, with VT420 features. Windows-like interface with pull-down menus and dialog boxes. 132-column display with EGA, VGA, or special video adapters. Full keyboard mapping and mouse support. Etc., etc., etc. If anyone wants it, just let me know and I'll send it to you in exchange for the cost of postage (weighs 8 pounds). Otherwise I will toss it in the recycle bin next week. Alan "Pack Rat" Frisbie

8 years

10
20
0 0

Parts help - need flight SRAMs

by mtapley＠swri.edu

All, I have a need at work for an unusual SRAM chip (related to the New Horizons mission). if you have a source or supply of these parts: Part #=5962H9954103QXC Qty=2 (per board) Description: SRAM 256K x 8 Package=FPK40 Generic part#=LM2M8CRH-Q30X with which you?d be willing to part for a good cause, we would really like to know about it! Please contact me off-list, either by email or phone below, and I?ll happily put you in contact with the right folks. - Mark 210-522-6025 office 210-379-4635 cell

8 years

3
3
0 0

For the price of shipping. Oddball telephones

by tony.aiuto＠gmail.com

I have two rare desktop telephones taking up space in my basement. I know I never will play with or display them. - Pingtel Xpressa PX-1. An early IP telephone - ATT 8130 "Computer Phone". It has an RS-232 port in the back for bi-directional comms. I reverse engineered the protocol when I used this in 1996. Crappy software available on request. I may even be able to dig up the code Larry Wall sent me (Perl, of course) from the same era. Photos here: https://photos.google.com/share/AF1QipMJ-iCRhnHmiL9PoswsyJ2fiNTMK5Lw1xf 5TgpYr6UAo6ktLFAe6yEds5XvCIDoCg?key=WldvcDZnNEFlMmNza25ZLUdsN205R24zcFV2MHNR Local pickup on Long Island or Manhattan, NY. I will mail it to you if you pay the shipping via paypal or google pay. I will weigh it and calculate the shipping if there is interest, but I am not going to bother unless someone is interested.

8 years

1
0
0 0

RC25 (was Re: Modifying microcode)

by ethan.dicks＠gmail.com

On Mon, Jun 4, 2018 at 5:13 PM, Paul Koning via cctalk <cctalk at classiccmp.org> wrote: >> On Jun 4, 2018, at 1:17 PM, Robert Armstrong via cctalk <cctalk at classiccmp.org> wrote: >> >> ... FWIW, I have a 725 complete and working. Well, except for the RC25, which never worked even when they were new. I had an 11/725 in the 80s and 90s and never had a problem with the RC25 but they are legendarily terrible. > Hm. I remember some RC25s on RSTS, and they seemed to be ok. The fact that they had two drives on one motor made it strange, especially if the fixed platter was your system device. We had to teach the OS how to deal with SY: going away temporarily. Oof, yeah. When I used my 725, I didn't spin the RC25 up and down except when booting and shutting down. I also had devices like RL02s for removable storage. I often wonder how hard it would be to develop some other storage device for the KELSI but then other projects push to the top of the stack and I move on. Mostly, what I need is affordable ($250 or less) Unibus storage with modern media (Flash or IDE adapter or whatever). I don't really care what form it takes but Unibus SCSI cards are quite pricey and making a new controller is even less affordable (I used to make and support DMA-enabled Unibus communication controllers for a living so I have a pretty good idea of the amount of effort required). -ethan

8 years

4
6
0 0

Whence 556?

by cclist＠sydex.com

List: This is one that's bothered me for most of my adult life. As you may or may not know, there were three industry standard densities for 7 track 1/2" tape: 200, 556 and finally 800 cpi/bpi. So 200 and 800 are nice decimal multiples of 10. But 556 doesn't fit that pattern--it's not a "nice' number, being the product of 4 and 139 and doesn't correspond to any computer-related characteristics that I know of. It's not metric. So why 556 and not 400, 512 or 600? There's got to be a story there, somewhere. I think the 556 density came in around the 1401/7090 time with the 729 II. Anyone know the story? --Chuck

8 years

3
4
0 0

RC25 (was Re: Modifying microcode)

by jnc＠mercury.lcs.mit.edu

> From: Ethan Dicks > Mostly, what I need is affordable ($250 or less) Unibus storage with > modern media There's this: http://www.retrocmp.com/projects/unibone Not quite there yet, but getting there. Noel

8 years

2
1
0 0

Restoring a PC Server 500 P/390

by athornton＠gmail.com

I Frankensteined a P/390 together out of a P/325 server and the PCI P/390 card back in the day. I assume you do have the LIC for the P/390 card, without which you?re dead in the water. At least the PCI model wasn?t picky about the disks it used. And I?m pretty sure it?ll work with whatever the final Warp Server release was (4, maybe?) by which time the native TCP/IP support was a lot better. It was a nice little machine for its day, although Hercules is now many times its speed on modern hardware. I used mine to run VM/CMS and Linux (under VM) quite well. Adam

8 years

7
17
0 0

Mostek MK50312

by ajwills＠scorchingbay.nz

Does anyone have any datasheet/hardware details of the early Mostek calculator chip MK50312N ? It may be listed in "Mostek, MOS Integrated Circuit Guide", 1975 - a magazine sized, 138 page, blue and silver book.? Which apparently covers the F8 and several early memory chips and some calculator chips. (Not listed in the Mostek 1974 "Integrated circuit guide") Any help would be appreciated, even just confirmation that it is listed in the '75 guide. --Tony

8 years

1
0
0 0

Modifying microcode

by Flash688＠flying-disk.com

Tony Duell <ard.p850ug1 at gmail.com> wrote: > > until the 8085 CFE loaded the microcode. > > Loaded from a TU58 cartridge, which is the main reason my 11/730 is not > running at the moment. The hardware is fine, I've rebuilt the drive rollers, > but as yet don't have a readable tape (not even blank, to write the > microcode onto). I'm pretty sure that I have a complete set of 11/730 TU58 tapes in my storage unit. I might even have some brand new tapes. If I can find them, I would be happy to send them to you. They have been sitting in storage for probably 20 years, so there are no guarantee that they are readable. I'm cleaning out the storage unit right now, in preparation for moving, so I'll keep an eye out for them. Alan "Pack rat" Frisbie

8 years

4
5
0 0

Logic Analyzer software for the HP-IB/RS-232 bus pre-processor HP 10342B

by marc.verdiell＠gmail.com

This has probably been asked before, but does anyone have the software package that came with the HP-IB/RS232 HP10342 bus pre-processor for the HP1650 series Logic Analyzer (actually I have a 1670G)? It should have a config file and an inverse assembler file. I'm interested in the HP-IB files. Can't find it anywhere. - Marc

8 years

7
9
0 0

M68020-PGA to M68EC020-PGA

by carlojpisani＠gmail.com

hi I am playing with an old Motorola board and I have a problem As you well know, the 68020 is a 32-bit microprocessor from Motorola, released in 1984. Motorola also manufactured MC68EC020 - embedded version of the MC68020 CPU, housed in different packages than the Motorola 68020 microprocessor, but even in the case of PGA package of 114-pin PGA, MC68020/PGA is not pin-to-pin compatible with M68EC020/PGA They both use 114-pin PGA package, but some pins are different, (Vcc and gnd are placed differenly in the pinout), and you need an adapter! My board's socket is designed for M68EC020, but I need to use a M68020 chip because only the goldcap version, i.e. MC68020RC33 114-pin ceramic PGA, is available at 33Mhz. Code: Select allCPU: MC68020 114-pin PGA ----[adapter] ---> socket: MC68EC020 114-pin PGA Do you happen to know *where* I can find an adaptor M68020-PGA to M68EC020 PGA? Do you happen to have for sale? here I am Thanks!

8 years

1
0
0 0

Fairchild 9440/445 MicroFlame?

by bob＠jfcl.com

I'm looking for manual scans, software, really any documentation of any kind for the Fairchild F9440 or 9445 (aka the MicroFlame) microprocessors. Yes, bitsavers and a few other places have datasheets for the chips, but that's really about all the documentation I've found. And yes, I know that they're Nova clones and can run DG software, but Fairchild had their own development tools too that seem to have disappeared completely. In particular, Fairchild had a single board computer for the 9445 called (I think) the PEP-45. It had a built in EPROM monitor called PEPBUG-45. I'd love to find manuals and schematics for that gizmo. Actually I'd be interested in documentation for any systems that used either of the 944x chips. Bob

8 years

3
3
0 0

Wonderland

by carlojpisani＠gmail.com

http://downthebunker.chickenkiller.com DownTheBunker is open! features: - bazaar distiller doesn't require to register an account, it sums up Market place's items for sale or wanted in a nutshell - person-to-person trading in the Bazaar, you have to register an account in order to contact people - mini message-wall; doesn't log the IP and doesn't require you to register, can be used as a message in the bottle, or a mini chat - message-board. doesn't request to register but it logs the IP. It's more advanced and it can be used as mini Wiki - Chunks (of users/stuff) offers FTP-like with manuals and links to other sites bookmarks Durcheinander is an advanced area with the possibility for the (local, only from the local intranet) user to upload and execute JavaScripts, JavaAplette, Node.Js code, and Java bytecode. It's not yet safe enough to be open to the public Internet, and it stills needs to be hardened in its profile. Due to what happened in December 2017, cyber attacks destroying the whole website, it's a reserved chunk of priv? stealth rooms for the team, whose access from the Internet is reserved and features are reduced e.g. it checks the socket.connect.ip, and if it comes from outside the intranet it blocks the whole scripting-engine allowing just a plain text browsing. My participation to SGI is merely focused on my needs, as I'd like to port an HDL simulator to Irix. But I sold my Octane 1 year ago, and I am willing to sell my dual Tezro rack-mountable racks cause I lost enthusiasm. Anyway, does anyone happen to have a copy of an Ada95 compiler for Irix? Or a working copy of GNAT? Needed for IRIX >= 6.5.27 I will for sure sell the Tezro, Maybe I will reconsider the purchase of a tiny Octane. I am more focused on Linux/HPPA and Linux/PPC32, which are used for job tasks. At the moment. I am developing a fast FiberChannel ram-disk for the radio telescope. cheers

8 years

2
1
0 0

M6809E/63C09E databus behavior question

by brain＠jbrain.com

I agree this is very specific, but I thought perhaps someone could help. As I look at the '09 datasheets, I can't tell when the data lines become valid on a write cycle. I ask because I have created a few projects that place themselves between the CPU and the CPU socket (CPLD based). To play nice with a potentially shared address and databus, my code honors the BA and TSC lines on the IC.? If either line is high, as noted in the datasheet, I tristate the address and data lines. Otherwise, the address lines are valid during the entire E cycle. As for data, it depends on the state of the R/W line. If R/W is high, the external databus is connected to the CPU databus during the entire cycle if TSC and BA are both low. If R/W is low, I initially set the external data bus according to this assign statement: assign data_ext = (!r_w & e& !(tsc | ba) ? data_09 : 8'bz); The '09 boots, but certain devices fail to operate.? If I change the assign to: assign data_ext = (!r_w & (e | q) & !(tsc | ba) ? data_09 : 8'bz); or assign data_ext = (!r_w& !(tsc | ba) ? data_09 : 8'bz); The devices begin working. Either of the modified equations works, but I don't know if can safely place data on the external databus during the entire cycle, like the address lines, or if I need to be off the bus for some small portion of the cycle.? I was hoping the datasheets could help, but I am missing the key portion of the timing diagrams. I hope someone can enlighten me.? I have the system working, I just want to make it as good as possible. Jim -- Jim Brain brain at jbrain.com www.jbrain.com

8 years

2
1
0 0

old DEC stuff

by sales＠elecplus.com

If they are still around, this guy had a lot of old DEC stuff. Not affiliated with seller, etc. Mitch Miller | Phone (937) 847-2300 / Fax (937) 847-2350 (Old area code was 513) | | Keyways, Inc. | 204 S. Third St. | Miamisburg, Ohio 45342 USA | | E-mail: miller at keyways.com | Web: http://www.keyways.com | Stock List: http://www.keyways.com/stock.html Cindy Croxton --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

8 years

12
13
0 0

Manual for Data Media Elite 2500 terminal?

by bob＠jfcl.com

Can anyone point me to a technical manual for the DataMedia Elite 2500A terminal? I'm especially interested in documentation on the escape sequences and the special character sets. This was a fairly high end smart terminal from the late 70s or early 80s. Bitsavers has a short manual for the 1500 which I'm guessing to be similar, but the 2500 has some extra features (e.g. insert line/character, delete line/character, etc) that aren't present there. Thanks, Bob Armstrong

8 years

2
1
0 0

No subject

by kevin_anderson_dbq＠yahoo.com

http://branch.annarobertsart.com Kevin Anderson

8 years

1
0
0 0

old DEC stuff

by jnc＠mercury.lcs.mit.edu

> From: Dominique Carlier > I just regret this incredible rise in prices for collector machines > that, not so long ago, were languishing in wet sheds Hey, look at the bright side: as a result, they are much less likely to be simply recycled as scrap. I took great pleasure in telling one seller who'd pulled a board-set, and recycled the rest, that the part he'd recycled was worth a lot more than the part he'd saved. Hopefully that kind of news gets around. Noel

8 years

4
4
0 0

No subject

by couryhouse＠aol.com

Sent from AOL Mobile Mail

8 years

1
0
0 0

Osborne available

by cctalk＠snarc.net

I received an email from plebourgeois at me.com who said he's in Mandeville, Lousiana and has an Osborne available with accessories/manauls to a good home for the cost of shipping. He said he'll throw it away if he does not find a home for it soon. That's all I know, do not reply to me or this list, send the guy an email directly. ________________________________ Evan Koblentz, director Vintage Computer Federation a 501(c)3 educational non-profit evan at vcfed.org (646) 546-9999 www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation

8 years

1
0
0 0

Modifying microcode

by jnc＠mercury.lcs.mit.edu

> From: Henk Gooijen > My findings so far : > www.pdp-11.nl/pdp11-35/repair/repair35page.html > Comments are very welcome! I got a: You don't have permission to access to this document on this server. Apache Server at pdp-11.nl error message? > I vaguely remember that there was a difference in the front console For > the BA11-K and the BA11-F configuration. ... the two ribbon cables from > the front panel are at the right side for a BA11-K box, and on the left > side for the BA11-F box. Given the location of the CPU boards in both > boxes, that makes sense. They didn't do two different console PCBs, did they? It must be just cabling routing? I couldn't find any manual/drawings for the BA11-K version, so I can't tell for sure.. > From: Jon Elson > I'd get an FPGA development board and download Xilinx's webpack > software. It would not take real long to design the basic microcode > engine, and then you could develop some application microcode in > parallel with the hardware That approach worked really well for Dave B and I on the QSIC. IIRC, we bounced around the uengine design concepts for a couple of days, and then once we decided to go, he had the hardware working in a day or so. It's in Verilog, so perfect for an FPGA devel board; I think it's in his Github repository: https://github.com/dabridgham/QSIC If you go this route, I have that config-file driven uassembler written in portable C (compiles on 3 different systems that I know of) which uses only standard I/O library which you can use for the ucode; it should handle most any uengine design, unless it has something really wierd. Noel

8 years

1
0
0 0

Modifying microcode

by jnc＠mercury.lcs.mit.edu

> From: Kyle Owen > I do have an 11/45, though... so with this modification, I suppose one > could have some fun: That's for the -11/40 - very different machine, one couldn't use the same technique on the /45; the /40 is prepared to accept additional ucode on additional CPU boards, that's how the EIA works: http://gunkies.org/wiki/KE11-E_Extended_Instruction_Set And it's custom boards, the design for which is no longer extant (pity, as I'd love to play with one myself). Finally, I have this vague memory that they had to put a few minor mods on some of the existing CPU boards (details also lost), although my memory may be misleading me on that. Noel

8 years

4
3
0 0

Modifying microcode

by jnc＠mercury.lcs.mit.edu

> From: Kyle Owen > So the same technique would work on the 11/35, then? Yes, the /35 and /40 are completely identical, except for the number painted on the inlay on the front console. (Well, the /35 was often sold in a BA11-K box, and the /40 in a BA11-F, but that's just physical configuration, and is just a 'usually' - there are /35's in BA11-F's [for sure], and probably /40's in BA11-K's.) Noel

8 years

2
1
0 0

DEC RSX-11D and its COBOL compiler?

by nw＠retrocomputingtasmania.com

I?m looking for a circa 1974 copy of RSX-11D distribution and the COBOL compiler that was shipped as an add-on product. I?ve looked through trailing-edge but maybe I am missing the obvious, anyone have any ideas or has a copy? thanks

8 years

8
13
0 0

Intel 386 chips, new in trays

by sales＠elecplus.com

Not affiliated with seller, etc. Intel 386 CPU. Remember when we bought them and thought they were so fast! Well..maybe someone has that obscure application that needs them. 500pcs QU80386EX25 NEW UNUSED IN TRAYS Regards, Ron Sanders RBD Electronics, Inc. 63 Flansburg Ave Dalton, MA 01226 1-413-442-1111 ron at rbdelectronics.com Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com AOL IM elcpls --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

8 years

1
0
0 0

Looking for a VT52 keycap

by web＠loomcom.com

Hello folks, This weekend I picked up a VT52 DECscope terminal from a fellow collector. It's in fantastic shape, apart from being a little dirty and missing the number "6" keycap from the number pad. This is a real long shot, but if you have a permanently broken VT52 terminal you're keeping for parts, could you please let me know? I'd like to buy a "6" key and make this one complete. -Seth -- Seth Morabito web at loomcom.com

8 years

2
1
0 0

MM11-F manual/drawings

by jnc＠mercury.lcs.mit.edu

So I have discovered that the manual and prints for the MM11-F core memory are not online; it turns out I have a manual/prints set, and at some point will get them scanned and over to Al. My question is: is there anyone who has an immediate need for these things? If so, I will make the scan higher priority, otherwise it'll be a round tuit number. Noel

8 years

1
0
0 0

DEC RSX-11D and its COBOL compiler?

by johnwallace4＠yahoo.co.uk

[apologies for lack of context, been away from cctalk a long time and insufficient recall of how this cctalk thing works... yet somehow still remember IAS on an 11/70 from the 1980s] Pick an RSX layered product and lots of fundamental stuff would probably be compatible between 11M, 11D, and IAS (and/or 11M+). Find the RSX version and see if IAS is mentioned as supported in the SPD or other documentation. It often was, and even if it wasn't, lots of non-priv stuff would just work. More IAS background from someone (not me) who was there in the IAS development team in DEC Reading: https://www.john-a-harper.com/ias.html "This page is dedicated to the best of the many PDP-11 operating systems - IAS I couldn't find anything else on the Web about IAS? but it deserves better than to fall completely into obscurity. DEC's approach to operating systems for the PDP-11 was anything but disciplined. New ones got invented every time some engineer or marketing person blinked. In the early days, there was a real-time kernel called RSX-11A, designed for memory-resident applications in what we now call embedded processors. Features got added to this rapidly - code bloat is nothing new. By the time it got to RSX-11D it had a complete disk-based file system, a program development environment, and support for every peripheral in the Small Computer Handbook (and there were plenty of them - peripherals on the PDP-11 obeyed the same strategic imperatives as operating systems - see above). At this time, a bright young engineer called Dave Cutler decided that enough was enough, and set out to create a small system that would do the same, which he called RSX-11M. We all know what happened to him - and he no longer even has the excuse of youthful excess. (continues...)" Hth.

8 years

1
0
0 0

Eudora email client source code released

by len＠shustek.com

For the last five years I've been working with Qualcomm and others to allow the Computer History Museum to release the source code of what was, in my opinion, the finest email client ever written: Eudora. It's finally done! http://www.computerhistory.org/atchm/the-eudora-email-client-source-code/

8 years

16
31
0 0

Linux Journal - the early years

by decguy＠songdog.eskimo.com

Is Linux "classic" enough? If you think not, please ignore this email I started with Linux kernel version 0.12 (not a typo), which I believe was the first version that was self-hosting. I subscribed to Linux Journal from its beginning. Is there any collector value or interest in old issues of Linux Journal? I have a continuous run for "several" years, beginning with the very first issue. Anyone interested? As many as you want could be yours for the cost of shipping (USPS Media Mail).

8 years

4
3
0 0

IBM 5140 - schematics?

by anders.k.nelson＠gmail.com

Hey all, I have an IBM 5140 portable with a printer but I'd really like to use it as a terminal among other things. Any chance there's documentation available for that Centronics connector or another internal header with RS232 or whatever? =] -- -- Anders Nelson +1 (517) 775-6129 www.erogear.com

8 years

5
5
0 0

Weird Lear-Siegler ADM-3A board

by jnc＠mercury.lcs.mit.edu

> From: Eric Smith > The NS455 has firmware in masked ROM ... The NS405 has the masked ROM > disabled Ah, thanks muchly! Do you know of _any_ documentation extant for the 455? I couldn't find anything.. > I've been searching for the NS405 manual (not the datasheet) for a very > long time. The data sheet seems pretty complete - are you sure there ever was a manual? Noel

8 years

1
0
0 0

Next 'stack' of computers to go, IBM p7's - not classics this time

by pete＠petelancashire.com

This time not so 'classic' My last job was maintaining IBM p7's and eventually p8's. One thing I started was putting together a home setup. But like all the other projects the gear has become redundant to me. The 'stack' consists of 2 each IBM p720's, a CR6 HMC, and a KVM drawer. The p720 do NOT have any hard drives or carriers, but both are available via Ebay. The carrier was used in more than one model, and in the past I've bought carriers with small disks for < $20 each, then found larger disks of various brands. And the rails are missing from the p720's. Google "ibm p720" I can't remember how much RAM, number of CPUs etc but one p720 was 'loaded'. If interested let me know and If anyone knows a good AIX list please let me know I'll try to get a few photo's this weekend. The 'stack' is located in Portland, Oregon. NO PACKING OR SHIPPING, must be local pickup. -pete

8 years

2
6
0 0

Weird Lear-Siegler ADM-3A board

by jnc＠mercury.lcs.mit.edu

> From: Jon Elson > Steve Ciarcia ... made a board using the NS405 called the Term-Mite. I decided I'd do an article about the Term-Mite for the CHWiki; I found Ciarcia's long article about the Term-Mite (in his book, which Google books has); it talks throughout the article about the NS455 - but it also says "[t]he Term-Mite actually uses a NS405 chip which is a specialized version of the generic NS455". So I went to look up the 405 and 455, to see what the difference was between the 405 and the 455. I found a data sheet for a 405, but not one for the 455. Does anyone know where I can find info about the 455 (or, better, yet, know what the difference is between the two - that would save me some leg-work). Thanks (I hope :-)! Noel

8 years

2
1
0 0

Amiga documentation - free for shipping

by decguy＠songdog.eskimo.com

I have some Amiga documentation gifted to me a long time ago by an Amiga enthusiast. Now that I'm moving and downsizing, it has to go. Free for shipping, USPS media mail. AmigaDOS User's Manual - paperback book --------------------------------------- "This manual describes the various AmigaDOS, [sic] and its commands." Errata to the AmigaDOS User's Manual - photocopy ------------------------------------------------ Amiga Hardware Manual - photocopy --------------------------------- "... provides information about the Amiga graphics and audio hardware ... tutorial on writing assembly language programes to directly control the Amiga's graphics and hardware." INTERFACING TO THE 68K BUS CONNECTOR ON THE AMIGA Designing Hardware for the Amiga Expansion Architecture Drawings of the Expansion Boards for the Amiga ---------------------------------------------- A packet of photocopy documents and schematics.

8 years

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Nekochan has been shut down :(

by mazzinia＠tin.it

I didn't see it being mentioned here on cctalk :( http://archive.is/dJgyQ but I'm hearing some refugees saying that the chances of the site going back online are not looking good

8 years

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I ran across this strange modernistic? Data General ...odd?

by michael.99.thompson＠gmail.com

> > Date: Mon, 21 May 2018 21:01:59 -0400 > From: Michael Thompson <michael.99.thompson at gmail.com> > Subject: Re: I ran across this strange modernistic? Data General > ...odd? computer? > The RICM has one, but it is not on the WWW site. > > Michael Thompson > > I put a picture of the one at RICM here: http://www.ricomputermuseum.org/Home/equipment/data-general-desktop-generat… Going from left to right: QIC tape drive, dual floppies, disk drive, card expansion, CPU, and power supply. We have the monitor, keyboard, and printer for it too. Next time I am in the warehouse I will take pictures of the serial/model number tags of everything. -- Michael Thompson

8 years

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Original CAD code in the wild?

by paul＠mcjones.org

Randy, Although there are people interested in collecting historic software (especially source code), I don?t know of a central place to discuss it. I?ve collected the original IBM 704 Fortran/Fortran II compiler, the original IBM 709x Lisp II interpreter, and various other things (see http://www.softwarepreservation.org/projects). As you build up your collection of CAD-related source code, I would encourage you to offer copies to the Computer History Museum (http://www.computerhistory.org/artifactdonation/) for long-term preservation. Paul McJones http://www.mcjones.org/dustydecks/ On May 21, 2018, Randy Dawson <rdawson16 at hotmail.com> wrote: > For a while I have collected bits of legacy CAD, most recently Martin Hepperle sent me what I believe is the last version of Hank Christianson's MOVIE.BYU, a FORTRAN based 3D modeling and animation system. > I also have experimented with the original Berkley SPICE, also written in FORTRAN. > ... > My question is, did any of the source code for these systems, Applicon, Auto-Trol, Calma, ComputerVision, thousands of lines of primarily FORTRAN ever make it out, where we could read and study this original body of mathematical geometry done on computers? > > I know we are primarily a hardware group here, but where is the interest in the software discussed? > > Randy

8 years

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Original CAD code in the wild?

by paul＠mcjones.org

Also, the computer history museum has a listing, so someone might be interested in getting the original code running on an emulator: http://www.computerhistory.org/collections/catalog/102726903 > On May 26, 2018, at 10:00 AM, steven at malikoff.com wrote: > > I don't know if any source is still available, but for a long time I've been fascinated by Ivan Sutherland's Sketchpad running on the TX-2: > https://www.youtube.com/watch?v=USyoT_Ha_bA > > Since Sutherland's technical report is also on the web (https://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-574.html) I reckon it would make for a great 3rd-year Computer Science graphics assignment, to replicate Sketchpad using a high level language. A look through the report shows the use of rings, linked lists, recursion, storage considerations, maths, graphics and so on (only needing to replace the light pen with the mouse of course) which could be a fascinating exercise for a student. Yes there are already Sketchpad-named apps and Sketchpad-like programs, but I'm not sure if there is a near-100% faithful recreation of that original program as demoed in the film out there. > > Steve.

8 years

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SOT: OCR errors PDF

by trash80＠internode.on.net

Hi guys - wonder if any OCR aficionado can help me out please. I'm trying to clean up some old computer docs. One of things I'm doing is running OCR over them, in particular Adobe's ClearScan which I really like for document clarity and small file sizes. A few of them are producing the error: Acrobat could not perform recognition (ocr) on this page because: ENU Most OCR errors relate to renderable text but I can't find an explanation for "ENU" Has anyone encountered this OCR error and can tell me what it means please. Thank you. Kevin Parker

8 years

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How to get rid of a DECwriter II?

by pbirkel＠gmail.com

Cross-post for the DEC Lovers here. -----Original Message----- Sent: Thursday, May 24, 2018 9:52 PM Subject: [GreenKeys] How to get rid of a DECwriter II? I'd sure like to get this thing out to make room for more Teletypes. Located in NW Arkansas. Jim Haynes <jhhaynes at earthlink.net> -----

8 years

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AW: cctalk Digest, Vol 44, Issue 24

by gerhard.kreuzer＠liftoff.at

ftp://ftp.irix.cc/pub/nekoware/ -----Urspr?ngliche Nachricht----- Von: cctalk [mailto:cctalk-bounces at classiccmp.org] Im Auftrag von cctalk-request at classiccmp.org Gesendet: Freitag, 25. Mai 2018 19:00 An: cctalk at classiccmp.org Betreff: cctalk Digest, Vol 44, Issue 24 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..."

8 years

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FS: HP 2116C Manual Set

by sellam.ismail＠gmail.com

Ahoy HP Aficionados! I have for sale here one nice set of documentation for the HP 2116C. There are a total of three original HP binders, each with a multitude of individual documents, as follows: Binder No. 4 HP BASIC (April 1970) HP FORTRAN (April 1970) Small Programs Manual - SIO Teleprinter Driver (LP Compatible) (April 1970) HP ALGOL (April 1970) Symbolic Editor (April 1970) Binder No. 5 12597A-002 Tape Reader Interface Kit Operating and Service Manual (November 1970) 2748A Tape Reader Operating and Service Manual (October 1970) 12531C Buffered Teleprinter Interface Kit Operating and Service Manual (July 1971) Manual of Diagnostics - Alter-Skip Instruction Test (June 1970) - Memory Reference Instruction Test (June 1970) - Shift-Rotate Instruction Test (June 1970) - HP 2116B Low Memory Address Test and HP 2116B High Memory Address Test (January 1971) - Tape Reader Test (January 1971) - Computer Interrupt Diagnostic (June 1970) - HP 2116C Low Memory Pattern Test and HP 2116C High Memory PatternTest (September 1970) - Power Fail Interrupt (February 1970) - General Purpose Register Diagnostic (May 1971) - HP 2116 TTY Test (April 1971) 12566A Microcircuit Interface Computer Interface Kit (December 1968) Binder No. 6 2752A Teleprinter Operating and Service Manual (November 1970) Teletype Corporation Bulletin 310B Vol 1: Technical Manual, 33 Teletypewriter Sets: Receive-Only (RO), Keyboard Send-Receive (KSR), Automatic Send-Receive (ASR) Teletype Corporation Bulletin 310B Vol 2: Technical Manual, 33 Teletypewriter Sets: Keyboard Send-Receive (KSR), Receive-Only (RO), Automatic Send-Receive (ASR) Teletype Corporation Bulletin 1184B: 33 Page Printer Set (ASR, KSR AND RO) Parts I am asking $250 or best offer. As always, please respond directly via e-mail if interested. Thanks! Sellam

8 years

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Extracting and viewing the original Mac bitmap fonts today

by lproven＠gmail.com

https://medium.com/@bzotto/hidden-sheep-and-mac-typography-archaeology-efce… Complete with easter eggs, source code and samples on Github. -- Liam Proven ? Profile: https://about.me/liamproven Email: lproven at cix.co.uk ? Google Mail/Hangouts/Plus: lproven at gmail.com Twitter/Facebook/Flickr: lproven ? Skype/LinkedIn: liamproven UK: +44 7939-087884 ? ?R (+ WhatsApp/Telegram/Signal): +420 702 829 053

8 years

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Eudora email client source code released

by wrm＠dW.co.za

> >For the last five years I've been working with Qualcomm and others to >allow the Computer History Museum to release the source code of what >was, in my opinion, the finest email client ever written: Eudora. >It's finally done! Yay! Now someone can fix the bugs :-) (6.2 here. Massive archive of emails. The search function is superb). W

8 years

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WTB: Solbourne computer

by kevin.bowling＠kev009.com

Looks neat, anyone have one of these things they'd sell me? I'm in the US Southwest, can ship or travel a bit. Regards, Kevin

8 years

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HP 9000-236 (9836CU) video cable.

by robert626001＠gmail.com

My latest score is an HP 9836CU (so, color with a 68010 CPU and HP-UX support) with a 98625A disk interface. I got the matching monitor, but I didn't get the video cable. Googling turns up that it's a very proprietary interface, but I could find nothing about the cable. It's a 15 pin D-sub at each end and I'm hoping that it's just straight through, but have been unable to verify that. Does anybody know? Or Is there anybody that has a 9836C or CU and would be willing to examine the video cable, please? Thanks Robert

8 years

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Original CAD code in the wild?

by rdawson16＠hotmail.com

For a while I have collected bits of legacy CAD, most recently Martin Hepperle sent me what I believe is the last version of Hank Christianson's MOVIE.BYU, a FORTRAN based 3D modeling and animation system. I also have experimented with the original Berkley SPICE, also written in FORTRAN. This weekend, I am reading "the Engineering Design Revolution", a 650 page history of the CAD industry by David Weisberg, who was there and worked for many of the companies in the beginning of the industry, I highly recommend this for anyone interested in CAD: www.cadhistory.net<http://www.cadhistory.net> The Engineering Design Revolution<http://www.cadhistory.net/> www.cadhistory.net The Engineering Design Revolution. The People, Companies and Computer Systems That Changed Forever the Practice of Engineering. By. David E. Weisberg My question is, did any of the source code for these systems, Applicon, Auto-Trol, Calma, ComputerVision, thousands of lines of primarily FORTRAN ever make it out, where we could read and study this original body of mathematical geometry done on computers? I know we are primarily a hardware group here, but where is the interest in the software discussed? Randy

8 years

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Digital VT420 repair?

by mail＠waldemar-brodkorb.de

Hi, after my Micro PDP11/83 boots up, I like to connect a Digital VT420 to the console port. This worked approx. 10 years ago. Now when I poweron the VT420 I get no message on the screen. The f3 key doesn't give me the configuration menu. Is it broken? Does it have some invalid configuration in NVRAM and can be resetted? I tried changing brightness and contrast, no change. Is it normal that the right LED is always on? See the picture. https://debug.openadk.org/pdp11/vt420.jpg I tried with and without serial connection to another system. Thanks for any advice, Waldemar

8 years

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I ran across this strange modernistic? Data General ...odd? computer?

by michael.99.thompson＠gmail.com

> > Date: Sun, 20 May 2018 18:04:00 -0400 > From: Ed Sharpe <couryhouse at aol.com> > To: cctalk at classiccmp.org > Subject: I ran across this strange modernistic? Data General ...odd? > computer? > > While? in the warehouse I ran across this strange modernistic? Data > General ...odd? computer? > I do not remember buying it!? ?Ed# > ? > ? > "https://www.smythretail.com/wp-content/uploads/2012/05/DG10_1-300x227.jpg > " > > The RICM has one, but it is not on the WWW site. Michael Thompson

8 years

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SMECC Museum PROJECT needs to buy or trade for or beg for the HP hand Held (700 series? help?) that was phone and a computer.... the early ones and also the later Win CE ones.... also need ad materials promo videos... anything related to spice display up... please drop note off list to us. thanks Ed#

by couryhouse＠aol.com

Sent SMECC Museum PROJECT needs to buy or trade for or beg for the HP hand Held (700 series? help?) that was phone and a computer.... the early ones and also the later Win CE ones.... also need ad materials promo videos... anything related to spice display up... please drop note off list to us. thanks Ed# AOL Mobile Mail

8 years

1
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Looking for a VALinux console adapter, for model 1000

by bobsmithofd＠gmail.com

Console Adapter 102267-00 VA 1000 THanks for any hints or leads! i have one stashed and can't find it of course. bb

8 years

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Re: I ran across this strange modernistic Data General ...odd computer

by Bruce＠Wild-Hare.com

G'day Zane - Like every other computer system created, the Desktop Generation has its own set of quirks and wonders. It was an interesting evolutionary repackage of the microEclipse processor, but I never saw a customer or user site actually using the Model 10's MS-DOS "compatibility feature". The hardware consisted of modular metal frame chassis with snap-on plastic covers. While great for manufacturing and cost control, the delicate plastic cover retaining tabs were always breaking and the covers would pull away from the chassis or just fall off. Only an annoying cosmetic problem until you find that a "dead man's switch" interlock was maintained by the power supply chassis front cover. Yes, the power supply would always be cut off whenever the plastic cover shifted, vibrated or fell off the chassis. Which happened often. (The cheapest solution was the unintended, creative use of a ball point pen combined with nerd engineering.) Many OEMS delivered DG/RDOS- or AOS-based applications written in ICOBOL or Business BASIC (i.e. NAPA). These were good systems for OEMs who had previously developed software for DG - providing their application was not disk-bound. DG eventually was forced to design and sell a parallel I/O bus option to help improve disk performance... to the confusion of customers previously told of the benefits of a serial I/O bus design. The system was followed by the DG/500, which had a similar hardware functional microEclipse-based design but enclosed in a then-familiar IBM PC AT (desktop) form factor. This was the final unsuccessful attempt to defend the low-end 16-bit Eclipse line from the PC onslaught. ----- Bruce Ray Wild Hare Computer Systems, Inc. Boulder, Colorado USA bkr at WildHareComputers.com ...preserving the Data General legacy: www.NovasAreForever.org

8 years

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I ran across this strange modernistic Data General ...odd computer

by couryhouse＠aol.com

While? in the warehouse I ran across this strange modernistic? Data General ...odd? computer? I do not remember buying it!? ?Ed# ? ? "https://www.smythretail.com/wp-content/uploads/2012/05/DG10_1-300x227.jpg" take the quotes away and put in browser see photo ? ? There are? 2 only I find on net... correct me? if there are more please especially? if there are manual links... the only? ?one physically? is? one at? chm that? is not as? wide. ( maybe no hard drive or less i/o options?) Any other? sites? with info?? 1981 and? multi? user? micro... cool!? ? link to smyth retail site that? ?used these? ? https://www.smythretail.com/our-team/smyth-history-a-tradition-in-automatio… ? link to photo only ? "https://www.smythretail.com/wp-content/uploads/2012/05/DG10_1-300x227.jpg" take the quotes away and put in browser see photo

8 years

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Kaypro 2000 charging

by r_a_feldman＠hotmail.com

Message: 20 Date: Wed, 16 May 2018 20:40:04 -0700 (PDT) From: Fred Cisin <cisin at xenosoft.com> <snip> >I remember an interview with Lee Felsenstein, in which he was asked how >much a battery power unit for the upcoming Osborne would weigh. He >reponded that the external DC connection was currently for use with a car. >(Lee was driving a Honda Accord). Sorry for the late reply, but I was travelling and needed to dig out the unit. The lead-acid battery for the Osborne Powr-Pak(tm) I own weighs 3.59 kg. Bob

8 years

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Original CAD code in the wild?

by jnc＠mercury.lcs.mit.edu

>From: Al Kossow > NASTRAN is available That's a finite element modeling code, isn't it? (I guess it all depends on what the OP meant by 'CAD'...) Noel

8 years

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Original CAD code in the wild?

by jnc＠mercury.lcs.mit.edu

> From: Randy Dawson > For a while I have collected bits of legacy CAD > ... > My question is, did any of the source code for these systems > .. ever make it out Well, not quite what you're asking about, I think (it sounds like you're interested in MechE CAD, not EE, even though SPICE was mentioned), but the original Stanford SUDS is still available, I think. > I know we are primarily a hardware group here, but where is the > interest in the software discussed? Is that a plaint ('how come we don't do software'), or a query ('where is software discussed')? If the latter, it tends to be system specific, from what I've seen - e.g. there's 'TUHS' for Unix, "its-hackers" for ITS, etc. Noel

8 years

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MS11 M8110/M8120 controller card differences

by jnc＠mercury.lcs.mit.edu

> From: Bob Smith > 8110 for MOS memory, and 8120 for bipolar memory is what field guyde > list says. Well, the early bipolar MS11-C (1K boards) used the M8110 during early production (see e.g. DEC-11-HMSAA-D-D, pg. 1-1), and apparently then switched over to the M8120. I've only seen the later MS11-A bipolar (4K boards - dunno why it's in reverse alpha order) associated with the M8120. > I think the there was some change from special select parts and a move > to schottky 74S series around the time of the 45/50 days. I wondered that, but the MS11-C and MS11-A are the same speed (300 nsec); although maybe the M8110 was a bit marginal, and component changes in the M8120 made it more robust? I guess I'll have to do it the hard way, and compare the ICs... :-( > 11/40 was faster than 11/35, but if you changed a wire, they were the > same. I've heard of other manufacturers doing that, but I thought the /35 and /40 were identical, except for the number on the console inlay, and the sales channel? Noel

8 years

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