test-drb July 1999

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175 participants
662 discussions

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DEC H7861 Power Supply Question

by wrking＠tsoft.com

Does anyone know the +5V and +12V current ratings of a DEC H7861 (Rev B, ECO 1) power supply? Thanks, Bill

25 years

looking for G111 & G233

by lemay＠cs.umn.edu

Well, I went and purchased a 8K core memory board on ebay, mainly because I recognized it as a G646C core memory plane from a pdp8/e or /f. If someone has the G111 and G233 boards that should go with this, but not the core memory, then perhaps i can trade you something for them. -Lawrence (That core plane will work in a Muniac computer too???) LeMay

25 years

Daisy computer ?????????

by rigdonj＠intellistar.net

This is another oddity that I spotted Friday. It's a black box about 3 feet high by 1 x 2 feet with 2 chrome legs that stick out to one side with castors on the end of them. It has an 8" floppy drive near the top and a FH 5 1/4" hard drive inside. There were several WIDE ( 60 pin?) ribbon cables hanging out of it. Inside at the bottom it has a card rack with about 6 or 8 Multi-bus cards in it. The label on the outside says that it was made by Daisy. Any one have any idea what it is? Joe

25 years

Can anyone ID these SEMI chips?

by Mzthompson＠aol.com

On Sun, 11 Jul 1999 Doug Coward <mranalog(a)home.com> wrote: >I have was appears to be a memory board made by "EMM". >It also appears to be Q-bus, at least the power and >ground seem to be in the right places to be Q-bus. >Anyway, the board has 64 of these chips, and looking >at the interconnection between chips, they appear to >be arranged in 2 groups of 32. The chips are labeled: > > SEMI > 4200ACC > 7733 > > These are 22 pin chips, made in 1977, but I can't >seem to find any chip manufacturer named SEMI or >any reference to this 4200 number. > > Can anyone identify these chip? I had almost forgot about having a copy of the 1980 IC Master. Anyway, you have a 4096x1 Static Ram chip The book lists it as a 4200A made by EMM/Semi: 4096x1 200ns access NMOS Tri-State output 22 pins +/- 5v & 12v supply If they still exist: EMM/Semi 2000 W. 14th St. Tempe, AZ (602) 968-4431 (800) 528-6050 HTH, Mike

25 years

CogWheels

by a2k＠one.net

Hello, I have two binders full of every CogWheels newsletter ever printed (Cincinnati, OH Osborne user's group). Does anyone have any interest in me scanning them and putting them on the web? Or does anyone need any photocopies? An old senile man from the group handed me the two binders and told me to look at them ... I have no idea if this mean they're mine or he wants them back... same thing with an Osborne I I'm working on. Oh well. Kevin ------------------------------------------------------------------------------- "It's you isn't it? THE BASTARD OPERATOR FROM HELL!" "In the flesh, on the phone and in your account..." -- BOFH #3

25 years

Check the sidebar: Fwd: [AWA] A little off the Old Radio topic, but -- snip --

by cfandt＠netsync.net

Well, whadayaknow! Could it be our James Willing referred to as "Jim Willing" in the sidebar of the referenced "Computerworld" flashback article below? I thought I was going to just see a reference to my AWA colleague, but lo!, Jim's in there too! >Reply-To: antiquewirelessassociation(a)egroups.com >Date: Mon, 12 Jul 1999 19:24:29 -0400 >From: "John Dilks, K2TQN" <oldradio(a)worldnet.att.net> >Organization: NJARC and the OldRadio Museum >To: list >Subject: [AWA] A little off the Old Radio topic, but if you're interested: >I'm in Computerworld this week, July 12. > >To my Radio friends, > > There is a write-up about me and the 1976 Personal Computing(R) Show >in "Computerworld" this week, July 12. The on-line version is at the >following URL: > > http://www.computerworld.com/home/print.nsf/all/990712B38A > > (Over half of the attendees to the 1976 show were radio hams.) >-- >73' John Dilks, K2TQN > > Webmaster for Antique Wireless Information ** New ** > http://www.eht.com/oldradio/awa >-=and=- > for the New Jersey Antique Radio Club > http://www.eht.com/oldradio > > Please visit my OldRadio Museum > http://www.eht.com/oldradio/museum >- Looks like Jim and J. Dilks are but two of the players, albeit minor, of the just launched revolution in personal computing and in there shoulder-to-shoulder with some of the pioneering manufacturers and marketers. Kinda neat! Regards, Chris -- -- Christian Fandt, Electronic/Electrical Historian Jamestown, NY USA cfandt(a)netsync.net Member of Antique Wireless Association Check our redesigned website! URL: http://www.antiquewireless.org/

25 years

(fwd) PERQ 2 requires new home

by ard＠p850ug1.demon.co.uk

This appeared on alt.sys.perq today - is anyone here interested? If anyone in the UK does rescue this machine (and I hope they do), I'd be happy to give some advice on sorting it out. Please reply to the poster below and not to me. -tony ---------------------------------------------------- I am the proud(?) owner of a Perq 2 system. Unfortunately it has come to pass that my house is not big enough for the both of us. It hasn't been booted for some years but made it all the way to 15 on the diagnostic counter when I tried the other day. I believe that spells hard drive trouble, which may or may not be fixable. As far as transport is concerned, I live about 30 miles SW of Cambridge, UK and it will be the responsibility of the new owner to transposrt it from there to wherever. Anyone who is interested mail me at graham(a)muscat.com. Graham.

25 years

Paging Bill Yakowenko!

by jlwest＠tseinc.com

Sorry to all on the list for this personal traffic; I don't have an email address handy for Mr. Bill Yakowenko. Bill; I'm getting the eproms you wanted from overseas. Send me your mailing address so I can forward them to you. Thanks! Jay West

25 years

Interesting online computer museum site

by af-list＠lafleur.wfi-inc.com

In one of my rambling, random searches I came across an interesting site chock-full of pictures and history. For those who haven't see it: http://www.wins.uva.nl/faculteit/museum/ Kept me busy for a couple of hours... Aaron

25 years

Can anyone ID these SEMI chips?

by mranalog＠home.com

Hi everyone, I'm curious about identifing some chips. I have was appears to be a memory board made by "EMM". It also appears to be Q-bus, at least the power and ground seem to be in the right places to be Q-bus. Anyway, the board has 64 of these chips, and looking at the interconnection between chips, they appear to be arranged in 2 groups of 32. The chips are labeled: SEMI 4200ACC 7733 These are 22 pin chips, made in 1977, but I can't seem to find any chip manufacturer named SEMI or any reference to this 4200 number. Can anyone identify these chip? Thanks in advance, --Doug ==================================================== Doug Coward dcoward(a)pressstart.com (work) Sr. Software Eng. mranalog(a)home.com (home) Press Start Inc. http://www.pressstart.com Sunnyvale,CA Curator Analog Computer Museum and History Center http://www.best.com/~dcoward/analog ====================================================

25 years

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test-drb July 1999