On 3 Feb 2012 at 21:12, Henk Gooijen wrote:
I may be completely wrong, but I seem to remember to
have used
9316 (?) which are hexadecimal display drivers (0 .. 9 A B C D E F)
But wasn't the 9316 (if I have that correct) from Fairchild?
After a bit of probing, it's pretty obvious it's a PMOS 14-pin DIP
with pin 3 = GND and pin 12 = Vdd = -15V. I'll have to see about
interconnections with the TMS1000--there are a few.
The board itself is supplied with -5 and -15 volts, so nothing on the
board is TTL.
--Chuck