test-drb September 2012

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TRS-80 Model I

by dgy＠einfo-net.com

Anyone near N.E. PA interested in buying my TRS-80 Model I? -Dave

12 years, 3 months

TI Microlaser toner, Netware books

by ray＠arachelian.com

While cleaning up, I found some toner for the TI Microlaser. (I no longer have the printer as it died a long time ago.) Also have some Netware books. Contact me off list if you're interested.

12 years, 3 months

Anyone with a manual or repair reference for Corvallis Microtechnology (CMT PC-5) (pc5-eb)

by barythrin＠gmail.com

I'm not easily finding any good references to repair/disassembly for these PC-5 systems. They're a hand held computer that apparently has a minimal dos 5.0 load and an 8088? chip so it's "compatible" with already compiled programs you could technically transfer to it via the serial port and kermit protocol (one I have works and counts 640K ram which is amusing) the other just makes a horrid buzzing noise when plugged into a power source. Obviously I'm guessing the battery or a cap is shot inside but was hoping to look at some guide to repairing these. Unfortunately most of what I find leads to the fairly nondescript corvallis website which no longer references these units and certainly seems like they used to just have you ship them the unit and fix it for hundreds of dollars. Anyone play with one of these? This http://www.cmtinc.com/techhelp/pc5faq.html is pretty much the most information I've come across so far but nothing really about the insides. They have an ftp I looked briefly through but it also seems to concentrate on using the newer models and not anything regarding repair that I could find. Really I would think they'd have something somewhere on replacing the battery as an FRU but perhaps they weren't intended to be field replaceable? It seems like it was popular with folks doing geological and forestry studies. Certainly looks more like something you'd find in a warehouse than a home though.

12 years, 3 months

Mr. Iam Primus

by rampaginggreenhulk＠yahoo.com

remember this post? --- On Sat, 5/1/10, Chris M <chrism3667 at yahoo.com> wrote: >? Also picked up a big huge square HP monitor. Don't know > the part # offhand, but has a datecode of 1984. First time > I've seen one of these. And I've seen a lot of monitors. I'm > sure I'm hoping in vain that it takes digital rgb. Awesome score! I've been looking for one of those for years. It's a fixed frequency analog RGB monitor, and was used by several flavors of workstations (IBM, SUN and HP, I do believe). Awesome picture on that thing. -Ian Strange for me to be asking you, but if you know what kind of monitor this is, and have specific details (scan rates preferably, digital or analog inputs), I would greatly appreciate it. Strange that I didn't provide the model number (this much distinguishes it from every other workstation monitor I've seen, it's a big burly rectangle), but it might be for the same reason I can't get to it now, it's buried, and very heavy, and I got no business lifting anything really. I'll get to it soon though. ?God I hope it's an early digital monitor. I plugged something into it before I buried it, and even the tech who I bought it from said he didn't get any positive results from it. I know I'm a goon. This I know.

12 years, 3 months

to the gentleman w/gobs of 7220s, please send me a private

by rampaginggreenhulk＠yahoo.com

with your requested price and location.

12 years, 3 months

multi-layer circuit boards

by rampaginggreenhulk＠yahoo.com

are you supposed to be able to tell just by looking at them if they have multiple layers? Assuming you have one w/multiple layers, and I guess I already know the answer, it's a huge headache to try and draw up schematics (or duplicate the artwork rather) w/only photographs of the top and bottom of the board? You'd need knowledge of the ic's, which isn't that huge a deal perhaps, being I'm questioning this w/regard to very standard ic's and glue. ?I want my APC back. I need to create copies of the cpu and disk controller cards. I don't have ready access to these. Each of these boards is nearly the size of a IBM 5150 mobo, so would it make sense that they are anything but single layer boards? And the APC had 2 video boards, each w/it's own pd7220. ?I got to find that yogi guy.

12 years, 3 months

Selling AMT DAP 610

by rborsuk＠colourfull.com

Hi All, I'm interested in selling my AMT DAP 610 and I thought I would offer it up here first before ebay. Here's a quick pic http://www.borsuk.info/ebay/dap.jpg The unit is located in Port Huron, MI. 48060. I have a ton of manuals , software and even the Sun workstations that hook to it. I'm not giving it away but if you would like to shoot me over an offer I'm willing to talk. I'm unemployed right now and have been for the past couple of months so unfortunately I have to pair down some of my things. The DAP has been stored inside and I'm the second owner of it. Anyways, if anyone has an interest, please let me know. Rob Robert Borsuk rborsuk at colourfull.com Colourfull Creations http://www.colourfull.com

12 years, 3 months

Surplus monitor

by kevenm＠reeltapetransfer.com

While cleaning up some, I've found I have an HP Monochrome Graphics Display E Ordering# D1181W Serial# 2919Y03783 pwr input CGA input (DB9 plug) about 19 lbs (plus packaging weight) If anyone has interest, $hipping cost only. Orem UT 84097 Keven Miller

12 years, 3 months

Looking for schematics for Data General MV/4000 DC Power Supply

by tommie＠fox.se

Do any of you have the following schematics for a Data General MV/4000 DC (or MV/4000 SC or MV/7800 DCX): Modular Power Supply, part number 5 021847. This power supply is a 15 inch board and is probably used on other systems as well. 300 VNR module circuit board, part number 5 21838. The MV/4000 DC http://www.foxdata.com/blog/?p=702 Tommie Mademark My Data General blog: http://www.foxdata.com/blog/

12 years, 3 months

Free TU80 tape drives

by doc＠vaxen.net

I have 3 DEC TU80 9-track drives that need to get gone. They are located in Austin TX and have been in storage since 2009. If you want them and can either pick them up, arrange to have them picked up, or pay for me to do so, they're yours. I would much prefer that they go as a set, but this beggar won't be choosy. Unfortunately, I need to dispose of them before September 24. I can no longer afford two storage units and that's the release date on the one that I'm closing. If nobody wants these drives, I'll have to scrap them. One was in fairly regular use until 2009, one other passed its internal diagnostics and tested good for read/write against the other at that time. The the plexiglas cover of the third one is broken and I never got around to replacing that so I've never powered it on. All three are in their original short racks. I have at least one Unibus controller and cable, maybe a couple of each, and a good handful of untested tapes with write rings. Doc PS - If you want the drives but can't pick them up before the 24th and are willing to pay a nominal amount on my storage until you can get here, we can work that out too. That's more a matter of "earnest money" than anything else.

12 years, 3 months

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test-drb September 2012