test-drb April 2004

test-drb@ccmp.vtda.org

248 participants
481 discussions

WTB: Link Computer Graphics CLK-3100 programmer

by rigdonj＠cfl.rr.com

Does anyone have the programming pod for a Link Computer Graphics CLK 3100 or 6100 programmer? I have the rest of the HW and SW but I'm missing the pod. Here is a couple of pictures. They're small but they're all that I could find. <http://www.linkins.com/devpro.htm> Joe

20 years, 3 months

TDC1007 / 1007 / TRW / Rare TRW Processor ?

by kahrs＠caip.rutgers.edu

Ah jeez, it's just a 8 bit video ADC. TRW made more than just multipliers (they were famous for making 8x8 and then 16x16 hardwired multipliers). Also famous, a single chip correlator. Details are in the TRW Databook (now deceased). But the price on epay is just amazing.

20 years, 3 months

HP 64000 in Kansas City

by jdbryan＠acm.org

On 12 Apr 2004 at 10:45, I wrote: > I'll scan a couple of pages from the "HP 64000 Installation and > Configuration Reference Manual" (64980-90921, June 1982) tonight that > show the differences and post a URL tomorrow. I've posted a pair of pages from the "HP 64000 System Overview" manual (64980-90912, February 1982) as a 63K PDF at: http://www.bcpl.net/~dbryan/dropbox/64000-extracts.pdf They have illustrations of the 64100A and 64110A mainframes and a short list of their physical differences. (The overview manual seemed to illustrate these better than the installation manual, once I had checked.) -- Dave

20 years, 3 months

PDP-11's heading for scrap This Week in Santa Barbara

by fm.arnold＠gmx.net

Hi, saw the following on alt.sys.pdp11, it's too far away for me :-( would take the consoleprinters myself if this were in Munich... Regards, Frank >PDP-11's heading for scrap This Week in Santa Barbara, CA area >Author Jeff Davies >Hi, I frequent the University of California - Santa Barbara surplus >store and noticed they have the following PDP stuff that is heading >for the scrap heap this week unless someone comes and buys it (and >considering that the alternative is scrap prices, it'll probably go >cheap): > >(from memory, so it's probably 85% accurate): > >- 4 waist-high 19" racks containing the PDP stuff. >- 2 each PDP-11/23 rackmounted >- 2 each PDP-11/73 rackmounted >- at least 4 RL02 drives >- a couple or more RC25 (I think) cartridge drives >- other random equipment that I can't identify >- 2 Decwriter line printers/consoles >- A big push cart full of (looks like unused) RL02 packs and RC25 >carts. >- RSX manuals and a bunch of other documents > >All this stuff came from an installation that was finally turned off, >so it looks complete. > >I'd get it for myself, but I just do not have room. If you're in the >Santa Barbara / Los Angeles area and are going to pick this stuff up >and need a hand, let me know. > >CONTACT: > >UCSB Central Stores >(805) 893-2732 >jeff.goldmann (the at symbol) stores. ucsb. edu

20 years, 3 months

New VAX CPUs (was Re: DEC VAX 785 and PDP11/70's in Kansas City)

by ken＠seefried.com

I was under the (possibly misguided) impression that Mentec owned or exclusively licensed the rights to much of the PDP-11 IP. Dunno how vigorously they would enforce it these days, but they do sell reimplimented PDP-11 hardware (http://www.mentec-inc.com/Mboards.html). Ken

20 years, 3 months

TDC1007 / 1007 / TRW / Rare TRW Processor ?

by ken＠seefried.com

8-bit flash A/D converter for video applications.

20 years, 3 months

MORE 1802s!!!

by rigdonj＠cfl.rr.com

I made a major score of 1802s recently. A couple of weeks ago I went a scrap place and found some old traffic controllers. I opened one and found that they all used socketed 1802 CPUs. I pulled over 50 of them :-) The controllers were Transyt moddel 1800s and they're made in Tallahassee Florida. Here is a not so good picture of what they look like <http://www.signalfan.freeservers.com/controllers/transyt1.htm>. FWIW I also found a couple of Eagle controllers and I checked them, they used 68008 CPUs. OK, Now go find those controllers! Joe

20 years, 3 months

Bubble Memory Collection

by anheier＠owt.com

I posted several images from my bubble memory collection. I will be posting better images and more historical information shortly. I have a nice Sharp module too, but couldn't find my image of that. The URL is: http://gallery.owt.com/~anheier/index.src enjoy! Norm

20 years, 3 months

Need help with Atari 1050 disk system

by dave04a＠dunfield.com

Hi Steve, >The 1050 uses the "standard" Atari 9 volt AC wall-wart that also powers the >early computers (400 / 800). It was a 31 Watt unit. They came out with a >"beefier" unit later, but for the 1050 the earlier one is fine. As such >polarity is a non-issue. If you plug the unit in without a computer >connected and power it up, the LED on the drive will come ON and you can >hear the spindle motor turn ON and hear the head stepper motor "seeking" >track zero, and then the LED goes out and the spindle and stepper motors >stop. Last night, I took the drive apart and checked it out (all looks good), I could see a rectifier on the input, so I concur that it is AC. I cobbled together a 9V ac supply and powered it up - I did observe exactly what you indicate, the drive comes on, spins, and the head steps out and back >from and to track zero. >The software that came with the 1050 only made it a "dual density" as they >called it drive. It actually provided 1.5 times the capacity. Later 3rd >parity software provided actual "double density" performance. The disks are >not IBM compatible. I could probably find a disk for you if I look hard >enough. > >Your last question is kind of a "trick" question. On Ebay you can >buy a SIO2PC cable that will allow your PC to emulate an Atari disk drive, >and there are "images" that can be downloaded to do this function. > >The Atari disk drives contain a "micro-computer" system (6502 based) that >talks to the floppy disk controller and interfaces to the Atari computer >over a 19.2 KBaud serial data link. You can send commands directly to the >drives (without DOS) to do "primates" like Format a disk, and data sector >puts / gets. I hope this helps. If I connect the drive to a computer, I observed the following: With not disk in the drive, the computer rapidly issues "Boot error" messages continuously, and the drive remains stopped. With a disk in the drive (not an Aari disk), the drive activates, and the computer issues "Boot error" much more slowly - clearly it is trying to read the unformatted disk. So - I think the drive is working. I was unable to find any way to get the system up with the drive connected, so I don't see how there could be DOS in ROM as some people have suggested. Any ideas? Is it possible to do anything with the disk without a DOS boot disk. This sounds like a very simiar arrangement to the C64 1541 drive, except that the commodore boots "normally" in BASIC and you can send commands to the drive via BASIC file operations - the Atari appears to want to boot from the drive before you can do anything. I'm planning to build a SIO2PC cable as soon as I can dig up an extra Atari peripheral cable. Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector.

20 years, 3 months

Need help with Atari 1050 disk system

by dave04a＠dunfield.com

Hi Everybody, (Hi doctor Nick) Picked up some more old Atari equipment at a flea market this weekend, among other things, I got a 1050 disk drive. I have not had one of these before. #1) Can anyone tell me the power requirements of this drive? (voltage, polarity, current) - this information should be on the label of the power supply - as you probably guessed, I did not get the supply with the drive (had an Atari computer supply in the box). #2) The box says "Includes DOS 3 Double Density Disk Operating System", but there were no diskettes in the box at all - presumably I need some sort of boot disk... Anyone out there with one that can make a copy or send an image (Can Atari images be read/written on a PC's drive?) Any help would be greatly appreciated. Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector.

20 years, 3 months

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test-drb April 2004