test-drb April 1999

test-drb@ccmp.vtda.org

170 participants
1190 discussions

by CLASSICCMP＠trailing-edge.com

>>DILOG DQ342 >>Quad Height, has a 34 and a 10-pin connector > >I think this is a MSCP MFM disk controller (there was also a floppy-only >version.) Found it in the book - this is, indeed, the floppy-only version. Tim.

25 years, 2 months

M9302 Capaciters

by danburrows＠mindspring.com

The 3 that are at the end of each chip - .01 disc The 4 at the end of the resistor rows marked 224 i.e. 0.22 IIRC without looking. The 2 in the middle of a row of resistors .001 disc The electrolytic in the middle 39 mfd at 10v. There is only 1 installed even though there is solder mask for 2. Dan -----Original Message----- From: Zane H. Healy <healyzh(a)aracnet.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, April 22, 1999 5:49 PM Subject: M9302 Capaciters >Well, in getting the area around the /44 cleared up I discovered that I've >got a M9302 after all, of course there is a reason that they weren't on my >inventory list. All the capaciters on the board are pretty well smashed. >The printed circuitry is also fairly badly corroded. > >I think I can probably get it cleaned up enough to use temporarily at >least, however, I need to know what size of caps I'm supposed to use (yes, >they're that badly smashed. > > Zane >| Zane H. Healy | UNIX Systems Adminstrator | >| healyzh(a)aracnet.com (primary) | Linux Enthusiast | >| healyzh(a)holonet.net (alternate) | Classic Computer Collector | >+----------------------------------+----------------------------+ >| Empire of the Petal Throne and Traveller Role Playing, | >| and Zane's Computer Museum. | >| http://www.dragonfire.net/~healyzh/ | >

25 years, 2 months

M9302 Capaciters

by healyzh＠aracnet.com

Well, in getting the area around the /44 cleared up I discovered that I've got a M9302 after all, of course there is a reason that they weren't on my inventory list. All the capaciters on the board are pretty well smashed. The printed circuitry is also fairly badly corroded. I think I can probably get it cleaned up enough to use temporarily at least, however, I need to know what size of caps I'm supposed to use (yes, they're that badly smashed. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.dragonfire.net/~healyzh/ |

25 years, 2 months

SUN tape drive was RE: Sun 1 question

by rigdonj＠intellistar.net

Aaron, It boots to the monitor prompt just fine but it won't boot from the hard drive. It may have been set up to boot from a LAN and just use the hard drive for local storage. I don't know enough about SUNs to know how to tell. Joe At 09:13 AM 4/22/99 -0700, you wrote: >What do you need to get the IPC going? I've got a bunch of "extra" Sun >stuff around, so maybe I can help you get it going. > >Or is it something more like non-functioning hardware? Does it boot to the >monitor prompt? > >Aaron > >On Thu, 22 Apr 1999, Joe wrote: > >> Aaron, >> >> Got it open. It has a Exabyte EXB-8505 drive in it. Don't know what >> I'll use it for. I haven't even been able to get my SUN IPC to boot yet. >> >> Thanks for the help. >> Joe > >

25 years, 2 months

New toy, IBM 5140

by SUPRDAVE＠aol.com

In a message dated 99-04-22 20:15:58 EDT, you write: > I picked up a nice looking 5140 today, even has a very nice IBM matching > carrying case. The wall wart (ac adapter) though looks wrong, its IBM, but > its small ala 200 MA (I gotta read the numbers, sorry, but I wanted to post > about my new toy right away). > > Anybody have details on the AC adapter, i know its model 6820822 from a > dealer ad, but naturally they don't mention the output voltage etc. Looks > like a brick sized unit. > yes, it is size of a brick! mine says output15v dc 2.7A original memory size was 256k. how much memory does yours have? The machine actually has power management including standby. <!> Not many programs will run on it but nice to have 720k floppies though.

25 years, 2 months

The "FIRST PC" and personal timelines (Was: And what were the80s

by CLASSICCMP＠trailing-edge.com

>> Just to put things into perspective, a week's groceries, these days, for a >> family of four, cost about $150, a decent mid-priced car costs $15000, and a >> farily well equipped and appropriately designated personal computer with a >> 400MHz pentium, 8GB HDD, 64MB of RAM, OS installed, all the multimedia >> features, plus a current-generation modem (V.90) costs $400 less the monitor >> with monitors costing $139 for a 15" and $300 for a 20" type. These prices >> are from Best-Buy's ad in last Sunday's paper. You can probably do better >> if you shop. >These prices are also based on technology that has had 50 years to mature, >and therefore the comparison is entirely invalid. "If the automobile had followed the same price-performance changes as the computer industry in the past 50 years, a Rolls Royce would today cost $4.95, get two million miles to the gallon, go 50000 MPH, and explode once a day, killing everyone inside." -- Robert X. Cringley -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

25 years, 2 months

The "FIRST PC" and personal timelines (Was: And what were the 80s

by jfoust＠threedee.com

At 11:31 PM 4/21/99 -0700, Sellam Ismail wrote: > >That's Doug Salot's (Yowza) creation. What about his assertion don't you >agree with? I think he's right on the mark. I became mightly confused when I searched my bookmarks for "classic computer" and found <http://www.yowza.com/classiccmp/faq.txt>, which was 404, so I trimmed off "faq.txt" and tried again, which 404'd, and then thought <http://www.yowza.com/> must be some kind of parody that Doug assembled, but now I'm not sure. Did he sell the domain? - John

25 years, 2 months

HP Apollo questions

by rigdonj＠intellistar.net

I was scrounging today and found a nice looking HP Apollo 400 in a surplus place. The owner didn't know anything about it but I dug around a bit more and found a monitor, mouse and keyboard that worked with it. Connected everything together and fired it up. It booted up with no problems but no one knows the pass word. Does anyone know how to bypass that? It's a model A2536A with a HP model A1097C monitor and HP/Apollo model A1630 keyboard. Can anyone tell me more about these? I know nothing about the Apollo computers. Any idea how usefull this thing is or what it's worth? Joe

25 years, 2 months

The "FIRST PC" and personal timelines (Was: And what were the80s

by edick＠idcomm.com

One aspect of this matter I'm already seeing ignored is the COST. That so-called FIRST personal computer which cost $300 in the early '50's, for example, cost quite a lot of money. In the '50's, it was unusual for anyone to earn $100 a week. A mid-priced Chevrolet cost less than $2000 and $10 a week was plenty for a week's groceries for a family of 4. Not even DEC's so-called personal computers were competitive enough to interest an industry professional. The DEC mini's weren't even a good buy as they became obsolete. I doubt DEC equipment was EVER used where there wasn't a third party present who profited from its use. That doesn't mean they weren't appropriate and suitable for a wide range of uses, but it certainly doesn't characterize a personal computer. Just to put things into perspective, a week's groceries, these days, for a family of four, cost about $150, a decent mid-priced car costs $15000, and a farily well equipped and appropriately designated personal computer with a 400MHz pentium, 8GB HDD, 64MB of RAM, OS installed, all the multimedia features, plus a current-generation modem (V.90) costs $400 less the monitor with monitors costing $139 for a 15" and $300 for a 20" type. These prices are from Best-Buy's ad in last Sunday's paper. You can probably do better if you shop. Dick -----Original Message----- From: Sellam Ismail <dastar(a)ncal.verio.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, April 22, 1999 3:21 AM Subject: Re: The "FIRST PC" and personal timelines (Was: And what were the80s >On Wed, 21 Apr 1999, Christian Fandt wrote: > >> This seems to be a well researched trail leading up to the Simon, IMO. > >Yes, Doug did a fantastic job. > >> However, any good guess as to how many Simons were actually made and >> successfully run from the over 400 plan sets sold? Any known to exist now? > >Doug is still looking for one, but he and another local Doug are looking >into building one. They've acquired a nice pile of relays and are hoping >to have one built by VCF 3.0 for exhibit. > >> To try to solve that First Microcomputer question, a set of attributes must >> first be set just like the set was to determine the 1st PC as shown in the >> above URL. Methinks that will be a bit troublesome as nobody seemed to >> agree on that during the last go-around of discussing the 1st Microcomputer >> here awhile back. > >Well, first what? First computer built around a microprocessor? That >would probably be Intel's development machines. Or should it include an >integrated CRT and keyboard? Or did it just have to have a serial >interface for a terminal? Or are lights and switches good enough for >output and input? > >Arguing firsts is mostly pointless because people have a problem agreeing >on the definition. I vote for the F14 CADC computer, since it was built >around what could be considered a "microprocessor" and was in production >and flying in the F14 in 1970. > >http://www.microcomputerhistory.com > >Sellam Alternate e-mail: dastar(a)siconic.com >--------------------------------------------------------------------------- --- >Don't rub the lamp if you don't want the genie to come out. > > Coming this October 2-3: Vintage Computer Festival 3.0! > See http://www.vintage.org/vcf for details! > [Last web site update: 04/03/99] >

25 years, 2 months

More 3rd Party DEC boards

by CLASSICCMP＠trailing-edge.com

> Versatec > PDP-11 Matrix control > This is a dual height board, but I'm pretty sure it's for a UNIBUS system, > thanks to the wierd connector sticking out the side of it for another board. Yeah, connectors out the side almost always signals non-Q-bus. This is part of the set that runs (surprise!) a Versatec plotter - think of it as a really labor-intensive laserprinter and you won't be too far off. >DILOG DQ342 >Quad Height, has a 34 and a 10-pin connector I think this is a MSCP MFM disk controller (there was also a floppy-only version.) >SCD-RQD11/EC >Quad Height, 4 20-pin connectors, 1 34-pin, and 1 10-pin. 3 LED's 2 green, >1 red. I think it's a Sigma ESDI controller, based on doing a DejaNews >search, it also looks like it _might_ be basically a rebadged WQESD >controller, since the one article talks about WOMBAT. Is this correct, and >can I just use my WQESD manual for it? The WQESD is the same as the SCD-RQD11/EC is the same as the Qualogy equivalent is the same as the DSD equivalent is the same as the American Digital Equivalent... *All* designed by Webster out of Australia. >Plessey >P/N 705920-100A >Quad Height, RAM board Count the chips, identify their type, and you know the size! -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

25 years, 2 months

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test-drb April 1999