August 2016 - vcf-midatlantic

Re: [vcf-midatlantic] Lancaster PA Cosmac Development System 1800 Ebay
by william degnan 26 Aug '16

26 Aug '16

What's nice for me personally is that this manual probably will help me with the earlier Microkit I have, from 1975. At least I hope the backplane configuration is more or less the same. I have been held up because I am unsure which slots in the backplane, assuming it's possible that there are assigned slots, to put each card. I can see from the MPM-216 page 30-31 (I had earlier found the manual too) that my hunch was correct about specific card slot assignments. You never know for sure if you have no docs. Here is my COSMAC Microkit thread if anyone is interested in comparing and contrasting my system with what's for sale now on Ebay http://www.vintagecomputer.net/browse_thread.cfm?id=511 BIll On Fri, Aug 26, 2016 at 9:46 AM, Ben Greenfield via vcf-midatlantic < vcf-midatlantic(a)lists.vintagecomputerfederation.org> wrote: > > > ---------- Forwarded message ---------- > From: Ben Greenfield <ben(a)cogs.com> > To: vcf-midatlantic <vcf-midatlantic(a)lists.vintagecomputerfederation.org> > Cc: > Date: Fri, 26 Aug 2016 09:46:47 -0400 > Subject: Re: [vcf-midatlantic] Lancaster PA Cosmac Development System 1800 > Ebay > I was curious so I dug up a manual for the box. > > > http://www.cosmacelf.com/publications/books/mpm-216-dev-sys-op-man.pdf > > > > On Aug 26, 2016, at 9:32 AM, william degnan via vcf-midatlantic < > vcf-midatlantic(a)lists.vintagecomputerfederation.org> wrote: > > > > of interest to people who are into MidAtlantic computing history. there > is > > a Cosmac Development System 1800 on Ebay, looks to be from 1977, This > unit > > has the same chassis as the 1975 RCA Microkit, and same general layout of > > boards. > > > > Bill > > >

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Lancaster PA Cosmac Development System 1800 Ebay
by william degnan 26 Aug '16

26 Aug '16

of interest to people who are into MidAtlantic computing history. there is a Cosmac Development System 1800 on Ebay, looks to be from 1977, This unit has the same chassis as the 1975 RCA Microkit, and same general layout of boards. Bill

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Re: [vcf-midatlantic] Who's going to VCF Midwest?
by Jack Rubin 25 Aug '16

25 Aug '16

I am! Jack

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VCF Midwest
by Mike Loewen 25 Aug '16

25 Aug '16

So, who's going to VCF Midwest? Mike Loewen mloewen(a)cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/

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Museum Report
by Jeffrey Brace 24 Aug '16

24 Aug '16

About a dozen visitors total today with moderate interest. -- Jeff Brace - ark72axow(a)gmail.com

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IA needs clean-up help Saturday
by Evan Koblentz 23 Aug '16

23 Aug '16

InfoAge needs people this Saturday (9am until whenever) to help clean debris from the courtyard behind our museum building. If anyone can help, then email Gloria (admsupport(a)infoage.org) as soon as possible and let her know you're with VCF.

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Celebration Apple 1 update
by Evan Koblentz 23 Aug '16

23 Aug '16

Bidding ends August 25. Jumped from 270K to 510K in the past day or two. Http://apple1.charitybuzz.com

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Aug 2016 Workshop
by Herb Johnson 22 Aug '16

22 Aug '16

http://www.retrotechnology.com/restore/vcf_aug16.html Still catching up after my Workshop appearance and work Sunday. Good to see my friends again and all-that-hardware. A mountain of 1960's transistor modules! Macs of various flavors. An early early Lear-Siegler terminal. Car repairs or avoidance thereof. And of course the VCF Museum. I've not captioned the photos much on my Web page - send me ID's and details so I can update the Web page. My fun was to take a S-100 system obtained Saturday, and getting it to power on Sunday. That is, after cleaning out the dust and subjecting to the Mach 1 power-vacuum at Infoage. Very careful powering process - Variac to bring up the S-100 power caps, keep the voltage down when running the box. Ohmic checks on the S-100 cards to look for shorted caps. Then adding cards to the chassis to check the regulators at work. No problems, no explosions. I'll have a Web page on restoring that Problem Solver System box and cards, soon. Had some interesting ownership. Herb -- Herbert R. Johnson, New Jersey USA http://www.retrotechnology.com OR .net

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Next Workshop: September
by Jeffrey Brace 22 Aug '16

22 Aug '16

For those interested then next workshop will be Sept. 17 & 10. -- Jeff Brace - ark72axow(a)gmail.com

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Festivus! Make sure to mark you calendars!
by Jeffrey Brace 22 Aug '16

22 Aug '16

Just a friendly reminder about Festivus on December 3 & 4. It will be the best Festivus ever! -- Jeff Brace - ark72axow(a)gmail.com

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