test-drb November 2002

test-drb@ccmp.vtda.org

252 participants
556 discussions

by jhfinepw4z＠compsys.to

Does anyone have any of these Qbus boards that I can buy? They have a TOY that has a window of 100 years. Sincerely yours, Jerome Fine -- If you attempted to send a reply and the original e-mail address has been discontinued due a high volume of junk e-mail, then the semi-permanent e-mail address can be obtained by replacing the four characters preceding the 'at' with the four digits of the current year.

23 years

Wanted: RA81/RA82 Disk Platter

by classiccmp＠crash.com

> I've got one, but it's occupying a place of honor in my collection. > The rest are sitting in my RA-82, which I'm not about to take apart. > These things are hard to come by, [...] About twelve years ago a friend and I were poking around MITs Surplus Property Office. Amongst all the cool "junque" was a pair of RP06 drives and some disk packs. With apologies now to the poor sods wanting an RP06 to hook up to their KS10 or something, I bought one of the disk packs for $5 or something and took it back to the office. I think I was able to deconstruct the whole thing with just hand tools. Resulted in a nice supply of 14" platters for gifts and wall art. In fact just yesterday I was using one of those platters to explain to someone what went on inside the Seagate ST-4051 she was holding, and to show the progression of storage technology... If you really needed a 14" platter for display, look around for a bad RL01/02 disk pack, there's one platter in each pack. Much easier than trying to bust open an HDA... --Steve.

23 years

Floating Point EPU for Z8000

by dwightk.elvey＠amd.com

Hi All Does anyone have any of the software information on the Z8000 Floating Point EPU? The CP/M-8000 that I've been working on uses an emulated EPU ( extended processing unit ). It also has code to run with a real EPU. This is all fine and dandy except I have no information on what is needed >from a software point of view. I need a model of what the real EPU does. The assembler I have includes the fp instructions but the docs don't mention how they are used. I suppose I could look to see how the C compiler uses them and look at the emulation code but it would be a lot easier with a users manual. Heck, I'm not even sure they actually made the part. Thanks Dwight

23 years

Value of classic computers

by mikeford＠socal.rr.com

>I _very recently_ had the unfortunate experience in having to deal with a >"collector" who seems to fit your description of the second group. I >invited the "collector" along on a rescue of a fair number of systems, >with a prior understanding that I'd get first pick, but he showed up >unannounced (didn't call ahead) and early (he got there before I had I used to go to a scrap yard where a good half dozen people would be lined up waiting for the gate to open, and people would literally run to the back to see the pallets of new stuff and stake out the stuff they wanted. Personality flaws were often revealed. I'm not shy, when I take somebody to a source of goodies, I lay out ground rules, and if they aren't accepted and followed, they don't get access anymore if I can manage it. OTOH this is my hobby, and I recognize for many people this is what puts food on the table and pays the rent. OTOOH I know a couple guys who absolutely refuse to reveal any sources of any kind, AND who often make hardline arrangements with all their sources, ie I accidently find a place on my own, but when I make an offer for some stuff I find out all deals get run past the person I know. I so detest this practice that I do try not to emulate it.

23 years

Apple /// help needed

by tiziano.garuti＠tin.it

Hi to everybody. I am in trouble with my beatiful Apple ///, the internal floppy drive is dead. I think that this is a mechanical problem, but I am not sure. Is there a test to check the hardware of the drive ? Another problem is with the Profile drive. I can get the files list via System utilities, but at the end of the list, I get a message like: "Warning: structure directory corrupted". Is there a way to fix this problem? Booting from Business Basic, the "catalog .profile" command is show in a window of 3 or 4 chr width! Why? Perhaps is the same problem with the corrupted directory. Any help will be apreciated :-) Bye Tiziano

23 years

Wanted: RA81/RA82 Disk Platter

by xds_sigma7＠hotmail.com

I've opened bad ones with water pump pliers, just firmly grip the weirdo bolts and apply mucho force, and they turn. BTW the screws/bolts/whatever they are appear to be copper... And no, I don't have any platters, I took em to the scrapyard a while ago. Will J _________________________________________________________________ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail

23 years

SOL-20 / eBay prices

by glenslick＠hotmail.com

What does PT / non-PT mean in this context? >From: Benedict Bridgewater <benb(a)Basit.COM> >Reply-To: cctalk(a)classiccmp.org >To: cctalk(a)classiccmp.org >Subject: SOL-20 / eBay prices >Date: Mon, 18 Nov 2002 13:24:41 -0500 (EST) > >Actually there's two SOL's currently on eBay. > >The 2nd one is currently "only" $500 or so: > >http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2071406461 > >The difference being that it has no documentation (which I suspect accounts >for >the price difference), and also it only has a single card in it - a non-PT >64K >memory card (I asked the seller if it was PT or not). > >In recent history SOL's have sold for anywhere from $490 to $2500! > >Documentation also seems to be what has so far driven this Altair to $4K: > >http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2072033128 > >Ben _________________________________________________________________ Help STOP SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail

23 years

Dying VaxStation 4000 VLC - help?

by mtapley＠swri.edu

On disassembly: Toth wrote: >First you'll want to remove lower portion of the plastic shell. There are >5 screws on the bottom of the unit, and two clips on the front edge. Figured out how to release those. Stuff a flat-head screwdriver blade in >from the bottom side, so it slides between the plastic clip and the metal tab it locks over. That way it's pretty easy to lever the plastic *only* far enough to disengage. >Once the graphics board is out, there are 3 more phillips screws at the >back edge of the mainboard. The plastic clips pull up to release, but with >the bottom shell off, you can use something to push them up from the >underside. That works. I used the point of needle-nosed pliers as a pin-driver (set in place, hold the handles, use the other hand to hammer on the one holding the pliers). Once the pins were driven mostly out, the whole clip could be wriggled out with not too much trouble. I still hate those clips. What do they do that a screw and lockwasher wouldn't do better? Big help! Thanks! I had the motherboard out in my hands last night, so I'm ready to go to work desoldering either the comparator or the resistors. Anyone have any educated guesses which one to try first? - Mark

23 years

PDP 11/45 available in the Chicago area

by uban＠ubanproductions.com

Hi All, A dealer who usually sells on ebay as RELCOMSER has just gotten an 11/45 in and has offered it to me and a couple of others before putting it up on ebay. He says that he wants $1000 or more for it, but in todays economy, who knows. I do not have any interest in this and would bargain with him for it myself, but my collection already includes an 11/45 and my wife would kill me. Here are details: His name et al: Patrick Lind, Reliable Computer Services Inc., 815-838-0134 His email: RELCOMSER(a)aol.com He is in the Chicago area (Lockport, IL) The specifics: One H960 with 11/45 including the following boards: M787, M8114, All M81?? so 15,12,13,00,01,02,03,04,05,06,08,07,09. M7800, M792-YD, M7800 Memory by Digital Pathways Inc. RVM 128K bds -2- boards. Also -1- RL02 in the same cabinet. Had -2- power supplies. Second H960 with a BAll-K & RL02 NOTE! The front panel has 6 of the plastic switch paddles broken off due to careless moving. He has also plugged it in, but says that he has no way of testing it. I know another guy who has a number of 11/70 front panels, some of which are only useful for parts, so these can be replaced. He made this offer to me, so I assume it applies to others: "We will sell one or both of the H960 cabinets. One has the 11/45 & RL02 with RL02K-DC pak One has a BAll-K & RL02 There are -2- H742-A power suplies with H744, H745, H7441regulators. We will supply -1- each of these regulators as good spares. Because of the age of this we are selling it AS IS, No Warranty. " He sent me some pics, which I will be happy to forward to anyone who is interested, or you can just send him some email. Again. I have no vested interest in this deal and I wish that I had the time, room, and money to pick it up myself. The 11/45 is one of my favorite machines. --tom

23 years

Looking for TRS-80 Models I to IV (including spares & accessories)

by glyncoedcompschool＠btinternet.com

Hi I live in the UK and am looking for TRS-80 models I to IV (including spares and accessories). If you're fed up of Zork and want some extra cash then email me with details of what you have, the condition it's in, the price you are looking for and where you live. I would prefer UK based to save on shipping costs but will consider anywhere. Regards John glyncoedcompschool(a)btinternet.com

23 years

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test-drb November 2002