test-drb

test-drb@ccmp.vtda.org

101090 discussions

by mdehling＠gmail.com

Dear list, through Antonio's efforts, we have now archived ISOs for a number of early CONDIST CDs. Unfortunately, this did not help me find a version of the VAXSET Software Engineering Tools for VMS 4.x that I was looking for: - CONDIST 1989-07 contains VAXSET v8.0, which requires VMS 5.0/5.1. - CONDIST 1989-05 does not contain any VAXSET components. So my hope now is that someone may still have old TK50 or 9-Track distribution tapes stored away for VAXSET v7.0 or earlier, or for some of its components: - LSE Language Sensitive Editor v2.2 or earlier - SCA Source Code Analyzer v1.2 or earlier - PCA Performance Coverage Analyzer v2.0 or earlier - DTM DEC/Test Manager v2.3 or earlier (I already have CMS and MMS.) Cheers, Malte -- Malte Dehling <mdehling at gmail.com>

5 years, 1 month

DECNet for Pro 300 series boxes

by bobsmithofd＠gmail.com

My recollection of Decnet for Pro boxes is that the available SW was for an end node and not a routing or other capability for the 380/350/325 boxes. While that memory might be incorrect, are there any DecNet packages for the Pro family available anywhere? a few hours of searching did not turn up any thing but PDFs about the software. thanks in advance for any replies. bob

5 years, 1 month

Fwd: DDS Intertec SuperBrain attic find w/ OS and dust cover

by 4eric.evans＠gmail.com

Classic Computer Collectors, My name is Eric and I live in Baton Rouge, LA. A customer of mine recently asked me to find a good home for his early 1980's Intertec Superbrain. He told me that it worked the last time he used it in 198? after which time it sat in his attic with the dust cover on it. He provided me with a number of 5.25" floppy disks, which he said contained the complete operating system. The chassis appears to be 100% intact, and includes the dust cover. I can provide a few photos if you'd like. I have not yet been able to make contact with any other classic PC collectors, or museums that have expressed interest. Before I send it out to my local recycler, I thought I'd reach out and see if anyone might be interested. Thank you for your time & God bless, Eric Evans 225homebuyers.com 225.242.9858 gVoice 316.461.8587 cell ---------- Forwarded message --------- From: Dave Dunfield <dds.dunfield at gmail.com> Date: Tue, May 11, 2021 at 11:09 PM Subject: Re: DDS Intertec SuperBrain attic find w/ OS and dust cover To: Eric Evans <4eric.evans at gmail.com> Hi Eric, Sorry but no - I'm moving to smaller digs and have had to let much of my collection go and simply can't take on more right now. You might try the Classic computer collectors mailing list: http://www.classiccmp.org Dave Btw: In asking stuff like this it might be a good idea to state your (or friends) location. On Mon, May 10, 2021 at 5:22 PM Eric Evans <4eric.evans at gmail.com> wrote: > Dave, > > A customer of mine recently asked me to find a good home for his early > 1980's Intertec Superbrain. He told me that it worked the last time he used > it in 198? after which time it sat in his attic with the dust cover on it. > He provided me with a number of 5.25" floppy disks, which he said contained > the complete operating system. > > The chassis appears to be 100% intact, and includes the dust cover. I can > provide a few photos if you'd like. > > I have not yet been able to make contact with any other classic PC > collectors, or museums that have expressed interest. Before I send it out > to my local recycler, I thought I'd reach out and see if you had any > interest, or knew of anyone who might. > > Thank you for your time & God bless, > > Eric Evans > 225homebuyers.com > 225.242.9858 gVoice > 316.461.8587 cell > -- ---------------------------------------------------------------------------------- Search "Dave's Old Computers" see "my personal" at bottom!

5 years, 1 month

Documentation for F11 Chipset?

by robert.jarratt＠ntlworld.com

I have gone back to trying to fix my DEC Professional 350. I have a printset for the machine now. I think the CPU is being constantly reset. Is there any documentation anywhere on the F11 chipset? Bitsavers only seems to have the later J11. Thanks Rob

5 years, 1 month

DEC PDP-8/e Omnibus backplane lubrication

by ccth6600＠gmail.com

What is the best type of lubricant for Omnibus backplanes? It can be a struggle to insert and remove PDP-8/e boards into the Omnibus. There is a risk of damage to the brittle bakelite connector housings on the Omnibus PCB. Traditional contact sprays should work but have two problems: 1) they remain wet and over time will attract and retain dust 2) the solvent and lubricant *may* weaken or attack the bakelite There are some PTFE (Teflon) based lubricant sprays which create a dry film. Would this type of spray work? Any suggestions on what I could use that reduces the strain on the Omnibus and the PCBs during insertion/removal without creating new problems? Thanks and best regards Tom Hunter

5 years, 1 month

Looking for VAXSET Software Engineering Tools for VMS 4.x

by mdehling＠gmail.com

Dear all, I am looking for a version of the VAXSET Software Engineering Tools to run on (Micro)VMS 4.7. The oldest version I have found so far is VAXSET010 which requires VMS 5.3 to run (this was on CSD 1991/05.) VAXSET is a bundle of the following components (and more in newer versions): - CMS (Code Management System) - LSE (Language Sensitive Editor) - SCA (Source Code Analyzer) - MMS (Module Management System) - PCA (Performance Coverage Analyzer) - DTM (DEC/Test Manager) I have found versions of CMS and MMS seperately that run on VMS 4.x. If anyone has old versions of the other components and is willing to share, that would be much appreciated :-) Cheers, Malte -- Malte Dehling <mdehling at gmail.com>

5 years, 1 month

920M - an European contemprary of the Apollo Guidance Computer

by erik＠baigar.de

Dear colleagues in vintage computing ;-) In the last years there has been substantial interest in the Apollo Guidance Computer (AGC). So maybe someone might be interested what happened outside of the United States in the 1960ties: Over the last few years I restored a 920M computer which was (among others) used as the guidance computer in the Europa rocket. This was the ancestor of the European Ariane sapce launcher: https://en.wikipedia.org/wiki/European_Launcher_Development_Organisation Although not well known, this machine is a contemporary of the AGC, it also uses integrated, SMD mounted circuits and is realized in DTL techology (Diode Transistor Technology). Its word width is 18bit, 8k of core store where standard within a show-box sized chassis. 2us and later down to 1us instruction time where stadnard. In contrast to the AGC, this machine was a member of a whole series of airborne computers - some of which are still in use TODAY (2021). After core and the DTL chips became obsolete, this architecture even was re-implemented by BAE systems using the AMD29XX chipset in the same chassis as drop-in replacement. The 920M never had core rope memory, and for rocket guidance 8k have been enough although adding a 2nd box extending the core was possible. Tte architecture is able to support up to 256k words of 18 bit. Of course, the instruction set is very archaic - no carry flag, no stack but it served its purpose with 18 bit choosen as the perfect word length to give reasonable resolution without need for double-word calculation in most applications; http://www.programmer-electronic-control.de/Elliott920FactsCard.pdf If this triggered some interest, you may watch my recently released video on the 920M (covers applications, internals and some software is shown running)... https://www.youtube.com/watch?v=v-gF5g0nnoE ...or visit my project page regarding the work of restoring three different members of this computer family to working condition: http://www.programmer-electronic-control.de/index.html Happy computing to all of you, best wishes, Erik. P.S. Just wanted to point out, that also in Europe there have been relevant developments regarding spaceborne computing in parallel to the Apollo programme! In no ways I want to diminish the achievemets of the Apollo development team... ''~`` ( o o ) +------------------------.oooO--(_)--Oooo.--------------------------+ | Dr. Erik Baigar Inertial Navigation & | | erik at baigar.de .oooO Vintage Computer | | www.baigar.de ( ) Oooo. Hobbyist | +---------------------------\ (----( )----------------------------+ \_) ) / (_/ Dr. Erik Baigar Scientific Lead Spectroscopy Systems Technologie Team Spectroscopy THORLABS GmbH M?nchner Weg 1 85232 Bergkirchen Germany Tel.: +49 (0) 8131 5956-40147 Fax.: ?+49 (0) 8131 5956-99 Mail: ?EBaigar at thorlabs.com Web: ?www.thorlabs.com General Manager: Dr. Bruno Gross HRB No: 85345, M?nchen

5 years, 1 month

MOPPY.....

by organlists1＠sonic.net

Which is closer to being vintage, the sounds made, or the floppy disk drives themselves? Moppy + Star Wars Theme = Floppy Vader's Theme https://youtu.be/LdgzsF_O7oI Donald R. Resor Jr. T. W. & T. C. Svc. Co. http://hammondorganservice.com Hammond USA warranty service "Most people don't have a sense of humor. They think they do, but they don't." --Jonathan Winters

5 years, 1 month

LK201 emulator for PS-2 keyboard

by paulkoning＠comcast.net

Last year I created an LK201 keyboard emulator that uses a USB keyboard. More recently I extended that work to create a second one that uses a PS-2 keyboard instead. Partly because I had one and figured it would be fun to try. You can find both designs on Github at https://github.com/pkoning2/lk201emu . The "doc" directory describes both; in particular, file doc/kicad.md talks about the hardware design, with pointers to an OSHPark layout, a parts BOM, and assembly instructions. The new one is slightly larger than the old (2 by 2 inches, rather than 2 by 1.5). I like the audio implementation a bit better; perhaps I'll revise the USB version to use that same technique. Enjoy. Comments and feedback will be much appreciated, either by email or on this list or as "issues" on Github. paul

5 years, 1 month

Has anyone heard from Paxton Hoag ?

by aek＠bitsavers.org

Josh and I have been trying to contact him for a couple of years now. Has anyone been in contact with him?

5 years, 1 month

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