test-drb August 2016

test-drb@ccmp.vtda.org

175 participants
281 discussions

Tek 4025 and 4017 Terminal option 31 kit to give away

by rlloken＠telus.net

I was rooting through the drawers in the shop looking for some torx screwdrivers and I found a Tek 4025 option 31 field upgrade kit part # 18-0124-00. This is complete in its original beat up box and useful only on a Tektronix 4025 or 4027 graphics terminal and there are none of those anywhere near here. Option 31 is a character set upgrade kit and has a printed circuit board, two character set ROMs, a DOS 5-1/4 floppy disk containing who know what, and a ribbon cable. And instructions. In the box, but unrelated, is an NIB key for a keyboard Tek part # 260-1924-00 and a used key cap (from a 4025?) labelled ERASE. Anybody want it for the postage? It should be fairly cheap to mail. -- Richard Loken VE6BSV, Systems Programmer - VMS : "...underneath those Athabasca University : tuques we wear, our Athabasca, Alberta Canada : heads are naked!" ** rlloken at telus.net ** : - Arthur Black

7 years, 9 months

Transitional Technology SCSI controller

by dj.taylor4＠comcast.net

I have an S-Box Q-bus SCSI controller made by Transitional Technology, it is missing two socketed chips; the PROM and what I think is a static RAM chip, both 28 pins. Does anyone have the HEX file of the PROM? Does anyone know what the RAM chip is? I curious to take a shot and see if this thing works. The board doesn't have jumpers, is it hardwired to some CSR? Thanks. Doug

7 years, 9 months

Midwest Scientific Instruments 6800

by vintagecomputer＠bettercomputing.net

Thanks Chris.. yes I think you are correct. ?Here is a photo of it: http://s1381.photobucket.com/user/unclefalter/media/20160520_194139_zpswkjg… This is the CPU board. ?I'm wondering why it has four EPROMs, and what the two unmarked do. ?This is where I wish there were a manual.. or even a good pic of an untouched original board to compare. http://s1381.photobucket.com/user/unclefalter/media/20160520_194018_zps8odx… I'd just settle for being able to fool around in the monitor. ?But I think this monitor is called WEEBUG because it's very stripped down. Sent from my Samsung device -------- Original message -------- From: Chris Elmquist <chrise at pobox.com> Date: 2016-08-01 8:14 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>, Brad H <vintagecomputer at bettercomputing.net> Subject: Re: Midwest Scientific Instruments 6800 I have all kinds of SWTPC 6800 stuff here and I think I recognize your floppy controller as a PERCOM LFD-400 board.? These are somewhat unique because they are built around a sync USART (S2650) and use 10-hole hard-sector floppy media (just like Heath H17 and Northstar systems). Can you see any PERCOM logo on the floppy controller board? Are there two 2708 EPROM on that board? Chris On August 1, 2016 12:32:49 PM CDT, Brad H <vintagecomputer at bettercomputing.net> wrote: >Just thought I'd send out another shout out to anyone who might have >one of these or is familiar with them. ?I've had this a while but have >not really been able to use it, lacking a boot disk. ?It also doesn't >have the standard MSIBUG ROM. ?I'm hoping maybe someone out there knows >how I could procure the original ROMs and put this back to stock. >I made a video showing the current 'WEEBUG' ROM in case any are curious >or someone out there knows about it. >Thanks! >https://youtu.be/LY7yoAVxSrM > > > >Sent from my Samsung device -- Chris Elmquist

7 years, 9 months

Pictures per previous post

by dfields-cctalk＠dpf.cc

You can view my shared album on the web: Classic Computers Apparently I can do this easily through iCloud. The joy of modern computers. :) Cheers, Doug -- Sent from my iPhone

7 years, 9 months

HP 2100A Restoration

by COURYHOUSE＠aol.com

Back in the day we were running and selling 2000 gear in the 80's never had a bad power supply. one fan died in our 2000 F/ access system and rather than tear it down to replace the fan.... just bolted a mother of a fan to the back of the processor over the space the dead fan was. Like the story of the shoemakers kids that never got new shoes as the shoemaker was busy helping everyone else.... this poor processor to this very day still has that fan on the back of the processor...... Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 8/2/2016 9:42:19 A.M. US Mountain Standard Time, glen.slick at gmail.com writes: On Mon, Aug 1, 2016 at 10:25 PM, Lyle Bickley <lbickley at bickleywest.com> wrote: > On Mon, 1 Aug 2016 22:11:17 -0700 > Bob Rosenbloom <bobalan at sbcglobal.net> wrote: > > --snip-- > >> There's a bunch of small electrolytic capacitors on the Inhibit >> Driver Load Card, A106, that needed to be reformed before my memory >> would work reliably. > >> They reformed themselves in one of my units. I had memory errors for >> an hour or so then they went away. On other units, I reformed the >> caps (took the board > >> out and slowly brought it up on a bench supply), and had no memory >> errors at first power up of the system. >> >> Bob > > I had exactly the same problem with the capacitors on a spare Inhibit > Driver Load Card. Most would not reform so I just replaced them with > modern caps. The board (and memory) worked perfectly after that. > > Lyle That is good information to know. I have a 2100A that I haven't touched in a while. It had memory issues that I never got around to trying to debug. Next time I work on it I'll look at the IDL card.

7 years, 9 months

FTGH: RL01 pack

by jnc＠mercury.lcs.mit.edu

So I have an RL01 pack, and no RL01 drives. Free to someone who can make use of it. (Note: it's missing its protective bottom cover.) If you have something I can use, to send the other way, so much the better! ;-) Noel

7 years, 9 months

LASERS! && Freemont Street LED array (was Re: Cray J932SE (was Re: Straight 8 up on Ebay just now))

by ethan＠757.org

> No, Brad was not the founder of NewTek. He did do early designs of the Toaster. > - John Derp! Checked, he built the first Video Toaster but not the company. https://en.wikipedia.org/wiki/Brad_Carvey Thanks for the correction! -- Ethan O'Toole

7 years, 9 months

Bill Gates: Windows 95 Was 'A High Point'

by COURYHOUSE＠aol.com

hey! the start it up song sold me! it sure was a production eh? I installed it... I liked it.. 98 SE got better me got worse XP was outstanding I did fine with vista... 7 was better yet. skipped 8 bought never installed and used to up to 8.1 then used to up to 10 on one system. I am happy with 10 just a few things to get used to. upgraded the edit bays and office systems... all is well no urge to go backwards.... In the archive area we keep at least one... dos 6 3.1 95 98se xp vista 7 In a message dated 8/1/2016 5:35:59 P.M. US Mountain Standard Time, vintagecomputer at bettercomputing.net writes: Er.. that was.. 'down one side of the CN tower'.. :) Sent from my Samsung device -------- Original message -------- From: Brad H <vintagecomputer at bettercomputing.net> Date: 2016-08-01 5:29 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Bill Gates: Windows 95 Was 'A High Point' I would call Win 95 a high point also. I lived near Toronto at the time and remember the unfurling of a huge Win 95 banner down one side. There were events everywhere. MS was really at their zenith. The excitement around that launch was like nothing since. I believe I got swept up and installed it immediately but shortly after removed it. Couldn't get used to the interface. Eventually for one reason or another I had to and did go back to it. Wasn't the greatest or most stable OS and was kind of a half breed at that, but man.. what I wouldn't give to feel the anticipation again, the difference between it and DOS. Nothing released on either PC or Mac has come close. Brad Sent from my Samsung device -------- Original message -------- From: Cameron Kaiser <spectre at floodgap.com> Date: 2016-08-01 4:25 PM (GMT-08:00) To: cctalk at classiccmp.org Subject: Re: Bill Gates: Windows 95 Was 'A High Point' > > <https://tech.slashdot.org/story/08/05/28/2214214/bill-gates-windows-95-was-…> > http://cdn.cultofmac.com/wp-content/uploads/2015/08/introducing.gif I have a "Windows '95 = Macintosh '89" pin on my iMac G4, as seen here: http://www.theapplecollection.com/Collection/pin/PinsBadges.html -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Business is war. -- Jack Tramiel -------------------------------------------

7 years, 9 months

Concurrent Computer Corporation

by pontus＠Update.UU.SE

Hi I'm trying to revive and old unix machine. A Concurrent Computer Corporation series 8000. This seems to be a later version of Masscomp MC5600/MC5700 which has a manual in bitsavers. The system runs RTU (which I assumes means Real Time Unix). My machine is in great condition and both SCSI disks (Seagate ST516) seems to work fine and I've made images. But the machine panics at boot: --- panic: Unauthorized use of RTU For further assistance, contact Concurrent's Customer Service Technical Support Group --- The NVRAM battery is long dead and upon entering the console I get a complaint regarding the TOD clock, but I see no way of setting it. I can boot into a "stand alone mode" but not single user. In the SAM I can poke arround the filesystem and use "date" to set a date, but the clock appears not to be running. Does anyone have experience with this type of machine, either CCC or masscomp and can offer assistance? It's a dual MIPS machine with 16MB of memory. /P

7 years, 9 months

by jwsmail＠jwsss.com

IANAL, and this is way off topic, but needs to be put out as there are a lot of ears here that depend on Bitsavers, and probably some of the other Museums. The Copyright office seems to be unhinged with an unrelated matter I won't post here (email me off list if you don't know about it), and is looking at things with a bad eye towards messing things up. This is the Section 108, which probably protects libraries and archives who have the need to allow copies of works made. Bitsavers has a slight off center of that charter in that they collect stuff in a different way than libraries do, but once collected it probably enjoys the protection of this part of the Copyright act. Almost everyone sounds like they are puzzled why it needs messing with, and probably does not. But we should be alert that collateral damage >from some idiotic revision doesn't include Bitsavers, Boatanchor, or countless others. Manx? Thanks Jim https://www.techdirt.com/articles/20160729/23591535111/copyright-office-int…

7 years, 9 months

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test-drb August 2016