I'd say that nails it, good work! Presently, I have a mail in to a Ken Ramsey who is a VP of sales at MCT. He believes that they may well have made the board, and has promised to forward my photos to their engineers - now in Malaysia - to see if anyone recognizes it.
But at least we know who made it.. this mystery may yet be solved. On Fri, Oct 2, 2015 at 1:52 PM, Chris Elmquist <chr...@pobox.com> wrote: > On Friday (10/02/2015 at 11:22AM -0500), drlegendre . wrote: > > 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. > > circa 1990, > http://www.ebay.com/itm/171511885205 > > http://i.ebayimg.com/00/s/MTIwMFgxNjAw/z/MVsAAOSwcu5USDJR/$_57.JPG > > > > On Fri, Oct 2, 2015 at 4:32 AM, Holm Tiffe <h...@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 Straße 42, 09600 Oberschöna, USt-Id: DE253710583 > > > www.tsht.de, i...@tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741 > > > > > > > > -- > Chris Elmquist > >