One more try - Can you ID this S-100 Serial board?

I think Holm nailed that one. The logo is probably just a coincidence, as it's pretty safe to say this board didn't originate in the 'Bad Old Days' of the DDR.. ;-) Seems like MCT in Shoreview, MN is our best working hypothesis. Would be nice to come across an advert or other piece of corporate ephemera from the early 1980s, to see what logo they used.

On Fri, Oct 2, 2015 at 4:32 AM, Holm Tiffe <holm at freibergnet.de> wrote: > Chris Elmquist wrote: > > > On Thursday (10/01/2015 at 06:21PM -0500), drlegendre . wrote: > > > @Chris > > > > > > That's an intriguing and very real possibility, but then there's this: > > > http://www.mct.net/ - Does that logo look familiar? Founded in the > 80s, > > > controller boards, interface modules, single-board computers.. but yes, > > > they are in Germany. I did try contacting them, but never heard back. > > > > They claim "Embedded Control know-how since 1984." but you have 1980 > > and 1981 date code parts on your board. It's possible they made the > > board before they knew how however. That is not unheard of. :-) > > > [..] > > I'm sure, that's not the company that build that S100 Board. Ranzin, where > mct.net is located, is former eastern germany (GDR) area (as my home is > too) > and S100 Buisses where simply not used before here before 1989. > Ther embedded control experience in this timeframe will be mostly an Z80 > compatibles (later Z8 too) an K1520 Bus systems. The AY3-1015 however was > available as TESLA MHB1012 or so, not as GI part. > > Regards, > > Holm > > -- > Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, > Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 > www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741 > >