test-drb May 2004

test-drb@ccmp.vtda.org

244 participants
500 discussions

by MTPro＠aol.com

<< I had a Portable I. It had 256KB on the motherboard, but could be expanded to 640KB with an ISA memory card like (almost) any other XT. From memory there was a Portable Plus, a Portable I with a 10MB HDD. >> Thanks to everyone for the discussion and answers; I will forward along the information to the woman. I actually did forward her e-mail to the list, but I guess the list server does not allow that and only submitted my e-mail "shell." Best, David, classiccomputing.com

20 years, 5 months

DEC VT100 terminal parts available

by jwest＠classiccmp.org

I have 2 VT100 terminals plus a vt100 plastic shell that I'm parting out. They are VERY yellowed cases, obviously a smoking environment. Definitely some screen burnin too. On at least one of them the fasteners that hold the top of the case to the bottom of the case are broken. I don't think they are worth much more than the junk heap. They all power up and go into setup mode just fine. They are all true VT100's, not 102's, etc. Some or all of the keyboards are missing some keycaps. I think one keyboard may have all it's keys. In addition, I have a vt102 without the top or bottom case. It is in perfect working order, clean, and no burnin with one major flaw. The metal band around the front of the tube has slipped, meaning two of the L brackets that are held down by that band have slipped back so the monitor is about 1/2 inch forward of where it should be. Thus it won't fit into a plastic case quite right. The band is too tight to push the L brackets back into place, and I'm not comfortable cutting that band and trying to put a new one in place (something about working with a large glass object under pressure scares me a bit). So far my plan is to keep the vt102 chassis as spares, and ditch the 2.1 vt100's. If anyone wants me to scavenge parts (logic board, power supply board, flyback, transformer, keycaps, crt tube, etc.) I would be happy to do that. Total price for each shipment will be shipping cost + 5 bucks (unless you just want a keycap or something)...negotiable. The only stipulation is you must let me know in a day or two, I'm itching to get them out of the house and gone. Jay West --- [This E-mail scanned for viruses by Declude Virus]

20 years, 5 months

BASICON MC-1N docs *scored*!

by dickset＠amanda.spole.gov

I finally heard back from the gentleman who responds to requests from the e-mail address at Basicon's former site... he sent me scans of some paper docs... JPGs, but quite legible. It fits the final pieces of the puzzle together for me, including fixing an ambiguity I had with one of the power/comms connector pins, and giving programming examples for talking to the MM58154A clock/calendar chip. If you ever happen to run across a 3"x4" board with an INS8073 and an 8255, embedded in something, nab it - it's a cool little piece of the early 1980s. Thanks to all for your input and help figuring this thing out. -ethan -- Ethan Dicks, A-130-S Current South Pole Weather at 04-May-2004 13:20 Z South Pole Station PSC 468 Box 400 Temp -87.2 F (-66.3 C) Windchill -145.1 F (-98.40 C) APO AP 96598 Wind 12 kts Grid 024 Barometer 673.1 mb (10888. ft) Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html

20 years, 5 months

wanted: (uk) C64 serial interface

by dave04a＠dunfield.com

At 23:57 03/05/2004 -0500, you wrote: >> Hi everyone, >> Can someone please help me find an RS232 serial interface converter for >> the 64? >> Cheers >> Stu >> >Good luck, they weren't too common. You might have to bash together some >1488-1489 chips and a 555 negative voltage circuit to get what you need. Is this the RS-232 module valled "VIC 1011A" which connects to the C64 "User port"? If so, I found one in a box of Commodore stuff I picked up this weekend... (Sorry, I don't think I want to part with it just yet, and it would be a long way to send it anyway). If anyone has some info on this device, it would be appreciated. I tried to look inside, however after removing the single screw from the bottom, it still seemed to be glued together, and I didn't want to break it. I'm guessing that it's just level converters for a "bit bash" serial port... If so, it should not be hard to cook something up yourself. Here is a page giving some information on rolling your own C64 serial port: http://www.funet.fi/pub/cbm/documents/projects/rs232/ Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

20 years, 5 months

HP CS/80 Instruction Set Programmers Manual (5955-3442)

by karen_reid＠DRSOptronics.com

Glen, I found this link http://www.classiccmp.org/pipermail/cctech/2002-September/002328.html while searching for this manual. Do you still have a copy of it? And would you be willing to share? I have an HP 7946 tape drive I need to access and the manual is nowhere to be found. Karen Reid Sr. Test Engineer DRS Optronics, Inc. 100 N. Babcock St. Melbourne, FL 32935 321.309.1865

20 years, 5 months

Fwd: compaq's portable computer

by dave04a＠dunfield.com

>> If anyone has the original setup disk for the Portable III, I would love to >> get an image of it - the "generic" AT setup disks work in that you can configure >> the drives and get it to boot, however Compaq apparently "rolled their own" >> checksum algorithm, as once configured with any of the generic disks, it gets a >> CMOS Checksum error. > >http://www.compaq.com/support/files/obsolete_diagnostics.html >I THINK that it includes what you need, along with some other junk. Thanks! - that was exactly what I wanted - works perfectly! Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

20 years, 5 months

Fwd: compaq's portable computer (+one on Ebay for $500)

by dave04a＠dunfield.com

>I'm pretty sure the Compaq Portable III that I sold in February was an 8088 machine. >Orange plasma display, small lunchbox configuration, etc. I just went back to the >sales-photos for it and indeed it was badged a III. It had the standard 640K of RAM >and no expansion slots. Did they possibly make this machine with different processor >configurations? Is it possible yours has a 3rd party processor upgrade? I definitely >didn't have to run a Setup program to get it going and it had sat idle for a long time >before I powered it up, so I'm fairly certain the one I had didn't have a setup >battery or CMOS setup storage. Lunchbox, Plasma, 640k and no-expansion all sound right, however it's definately a 286, and according to the Compaq literature as well as several web sites I've just checked, that's what's supposed to be in there... Here's a guy on Ebay trying to sell one for $500 ... any takers? :-) http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4193&item=4127904926 [I'd even let mine go at that price - found at garage sale for $5] The setup software was a bootable diskette (like the original IBM-AT)... It definately has a CMOS RAM and battery, because mine is dead and doesn't hold a charge, causing the machine to fail it's startup disgnostics if you leave it for more than a day or two. Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

20 years, 5 months

2 PDP-11/04s available in Melbourne, Australia

by dr.ido＠bigpond.net.au

Available for free (pick up only, I can't think of a viable way to ship these) in the SE suburbs or Melbourne. 2 x PDP-11/04s 4 x RL01 drives Misc. RL01 disk packs, cables, etc. No racks They're in rough condition. They've been sitting on the back verandah of my house for some time now. Out of the rain, but exposed to the elements. I removed them from a building that was being vandalized and eventually demolished. A planned move that would have seen them more appropriately housed fell through. I haven't attempted to power them up. They used to be the character generator and animation system for a large scoreboard. One of the RL01s is damaged. There are dents and scratches >from where someone has hit it with something. The VT100s there didn't fare so well. I doubt any of the disk packs will be salvageable, they've been thrown around (I found this lot after tripping over a disk pack while I was walking through the long grass). Getting this stuff down from the 5th floor was hard work on my own. I was hoping to get it up and running again one day, but probably should have passed it on to someone else long ago. I recall offering these to someone on this list sometime ago, but I lost contact (my apologies, not his fault).

20 years, 5 months

hp proprietary uP history (9825 uP)?

by aek＠spies.com

Thirdly, could anybody add more to the limited amount of technical info available on the HP250 machines? -- check out www.bitsavers.org/pdf/hp/250 I should have more information on the 300 soon. AFAIK the 300 and 3000/S33 were pretty much the same hardware except for microcode.

20 years, 5 months

Tektronix CP-1160/DEC something

by GOOI＠oce.nl

I am almost certain it is basically an 11/35, or 11/40. The /35 was the OEM version of the /40, hence they both have the same 5-card CPU set with optional cards for FIS, EIS and MMU. The MMU also required a small extra board called stack limit register. For more info on the /35 see www.pdp-11.nl - Henk, PA8PDP. > -----Original Message----- > From: Joe R. [mailto:rigdonj@cfl.rr.com] > Sent: maandag 3 mei 2004 23:29 > To: cctalk(a)classiccmp.org > Subject: Tektronix CP-1160/DEC something > > > A couple of months ago I found a DEC computer with a front > panel. Then I > found a second one a few weeks ago. The panels are painted in > two tone blue > Tekronix colors. I finally got around to photograghing one of > the front > panels today. I'm posting a picture of it at > <http://www.classiccmp.org/hp/dec-k/cp1160.jpg>. Sorry but I haven't > cleaned it up. It's also missing two switch handles. The first one was > marked as being a 11/35FC but I don't remember seeing a model > number on the > 2nd one. > > Joe >

20 years, 5 months

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test-drb May 2004