--- Gary Dean Hildebrand <ghldbrd(a)ccp.com> wrote:
Ethan Dicks writes:
> I don't recall if that is one of the models or not, but some C= PSUs
> provide 60Hz "tick" to the CIAs (some, like the A500, do not).
The 60Hz 'tick' was on the old CBM 8 bit
machines. They had a seperate
10vAC input that was tapped for that, as well as provide 12 volts for the
analog circuitry.
Not only the 8-bit machines. The A1000 and A2000 provided 'tick' to
their boards. The A2000 could be jumpered to not require it (I have
done so for my A2000 in a Bomac (sp?) tower case that I've fitted a
PeeCee PSU in.
The A4000 does not provide tick. I didn't remember about the A3000.
The A500 PS only provided DC voltages.
That much is certainly true.
-ethan
The New Yahoo! Search - Faster. Easier. Bingo
http://search.yahoo.com