test-drb December 2004

test-drb@ccmp.vtda.org

243 participants
530 discussions

by Innfogra＠aol.com

I have an MDS 800, not running, and several iPDS intel development systems. I also have an Intel 330, a 380 and several 310s for Multibus I systems. A recent addition is an 80/10 rack mount system (4 slot Multibus I with a SBC 80/10). I have had all of the development systems go through my hands in the early 90s when we were buying truckloads from intel. I have tinkered with most. About 1993 we sold all of our Multibus cards to Inbus. Did anyone on the list get the intel IPSC that sold on ebay last month. Paxton Astoria, OR

20 years

Waterloo MicroWAT ?

by dave04a＠dunfield.com

>> From there it goes on to describe the waterloo software and languages, with >> no real distinction between the microWAT the the SuperPET - so the above isx >> really all I know for certain about the microWAT, however it does appear to >> be distinct from, but related to the SuperPET. > >Based on that document, yes, it does sound like they are indeed separate >units. Is there a 6502 in yours, or is it 6809 only? > >I'll update my page. It has only a 6809 in it, which doesn't suprise me, since I don't believe the 6502 is actually used by the Waterloo software once the SuperPET is switched to 6809 mode. I am planning an update to my site within the next couple of weeks, and I will include photos of the microWAT (inside and out), as well as the document that I have, and whatever other information I can turn up between now and then. Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

20 years

Intel MDS Series II poll

by dmabry＠mich.com

Ok, I've been on a kick lately to get my Intel MDS Series II systems working as much as I can. So my interest in them is peaking. I'd like to know who has Series II's on this list, if you don't mind admitting it. I know that Tony, Joe, Steve, Dwight, and a few others do. And Joe can probably supply anyone who wants one with a system. ;) Just kidding Joe. You are hanging onto yours as an investment, right? I know I am!!! These last couple of days I copied images of the ROM code that makes up an upgrade for the Series II called iMDX-511. It was all new firmware for the IOC board (4 2716's) and a new firmware in the keyboard (8741A) to implement the upgrade. It turned the RPT (repeat) key into a "function" (FCTN) key. And along with the latest version of ISIS (4.3) you had the capability to hit FCTN-D for "DIR " or FCTN-T for " TO " and many other "soft" keys for ISIS command line shortcuts. It also added cursor addressability to the integral CRT and some attributes, like reverse video, blinking, underline, etc. All stuff that we take for granted today, but in those days it was a big thing!!! Anyway, if anyone is interested I can make the binaries available and help those of you who have these beasts get it implemented. Any takers? Dave Mabry

20 years

LF: Tektronix Model 31 Info AVL: Olivetti Programma 101 parts/docs

by dave04a＠dunfield.com

Hi Guys, Just picked up an Tektronix Model 31 desktop calculator. This is a fairly old (early 70s) desktop programmable with built in tape storage and printer. Looking for information/documenation on it - all I got was the bare unit (which looks to be in good shape). Also got a stack of circuit boards from an Olivetti Programma 101 (early 60s) as well as the general reference manual and some programming sheets - unfortunately the machine itself was "taken apart" many years ago and this is all that remains - the boards are very interesting and worth keeping on their own, as they utilize discrete resistor/transistor logic modules. However, if someone on this list has a Programma 101 in need of parts, I would rather see them used to heal a whole machine instead of sitting on my shelf as curiosities. Regards, Dave PS: Also picked up a "MicroWat" - 6809 based computer built by the University of Waterloo in Canada - if anyone has info please contact me. -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

20 years

Powermac 8100/80 RAM question

by richard.beaudry＠gmail.com

>From: Tom Peters <tpeters(a)mixcom.com> >Subject: Re: Powermac 8100/80 RAM question >To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> > >I have lots of old 72-pin SIMMs laying around. What are you looking for? Actually, I have a metric crapload of PC 72-pin SIMMs lying around, and the Mac that needs more RAM. Just wondering if I could make a match. It seems like it will, from all the replies, so maybe some of that RAM can find a home.... Thanks to all for the replies! Rich B.

20 years

Reviving old hard drives

by sloboyko＠yahoo.com

1. Very early full height drives had a real "brake", like a brake shoe on a car, that locks when power is disengaged. Maybe this is sticking. 2. Very early drives son't have any kind of embedded servo/voice coil technology - they used a stepper only. I recall that those didn't like to operate outside of a narrow temperature range (50-100F), probably coefficient of expension problems. I remember that we were so excited when our first Shugart 5M full height came in we formatted it immediately after it had been in a UPS truck for days during the winter - and it produced numerous errors. Two hours later, we reformatted it and it was fine. So, I don't know how well the temperature trick will work. It might work for a few minutes between "too cold" and "too hot"... ===== -Steve Loboyko Website: http://juliepalooza.8m.com/sl Nixie Watch (one-tube):http://juliepalooza.8m.com/sl/complwatch.htm __________________________________ Do you Yahoo!? All your favorites on one personal page – Try My Yahoo! http://my.yahoo.com

20 years

OT: merry stuff

by julesrichardsonuk＠yahoo.co.uk

merry xmas (where x = ?) thought I'd get there first :-P enjoy yourselves this weekend, people!

20 years

Noisy profile hard drive

by cb＠mythtech.net

I've got someone asking me about a Profile hard drive in a Lisa 2/10. He says it makes a loud screaming noise when it is running. Maybe bad bearings? Anyone seen this with the Profile drives? Any idea if it is fatal? Any idea if it can be repaired? Any advise I can pass on would be great. -chris <http://www.mythtech.net>

20 years

8' floppy drive.

by c3636b＠hotmail.com

Hi Rich, Do you still have Shugart 801 8" floppy driver and can you ship it to = Hong Kong. How much it cost. Please be advise. Thanks Ben

20 years

Waterloo MicroWAT ?

by dave04a＠dunfield.com

Anyone here know anything about the "MicroWAT" computer, which was developed at the University of Waterloo in Ontario Canada around 1980. I just acquired one - this is a small 6809 based computer, which I am told is very similar/somewhat compatible with the Waterloo 6809 coprocessor in the Commodore SuperPET. Looking for any information on it, as well as software (it apparently uses an IEEEish drive like the PET - in fact, it is possible/likely that a CBM drive is what it was designed for) One burning question - when I opened the machine, I found five cards in the slots - an I/O card, a CPU card (with a bit of ROM), a ROM card, and two RAM cards - tucked into the gap left by the two remaining empty slots was a small sealed board wrapped up in a plastic bag. This board is only perhaps 2-1/2 inches high (1/2 height or less of the other boards), and is completely encased in a shell, perhaps 1" thick, and is filled with potting compound - the only part visible is the edge card connector. In other words, it looks like a 1" x 2-1/2" black box with an edge card connector protruding from it - it will fit the slots, although I'm not completely certain which way it goes in (it could face either way). Anyone know what this board is? Could it be related to the "Secret" little daughter board in the SuperPET (the one whose function was never documented)? [If it's like that board, then it would be required for the system to function, which would lead to the question - why was it unplugged and wrapped up?] any info or pointers for either the machine, card or both would be greatly appreciated. Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

20 years

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test-drb December 2004