--- Richard Erlacher <edick_at_idcomm.com> wrote:
> Have another look at that UART on the MITS board and see if it isn't an
> AY-5-1013A.
Oops... midnight typo.
> The spacing on that P2 connector is probably 0.157" (close
> enough to 0.154, but ... )
OK... I did not get out the micrometer...
> I've got one of those COMUTIME FDC's, but, alas, like you, Ethan, I've
> got no documentation.
I'm sure that's more common than the reverse.
> I also believe I have some source code for the board _somewhere_.
If you ever run across it, I'd like to hear it.
> Those SSM video boards were pretty popular, though they are capable of
> only 16 lines of 64 characters
Right... that's in the docs.
> That 24-pin DIP missing from the video board might well have been a
> character generator.
Could be. There isn't one elsewhere on the board, but there are a couple
of EPROMs marked "GEN".
> ..you may find it matches the pinout of either a 2513 (GI)
> character generator or a 2716 (they're not the same).
I have a couple of 2513 chips - one or two with this pile and I think
one more with my TVT-6.
-ethan
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Received on Sun Dec 30 2001 - 12:30:52 GMT