31 Jul
2002
31 Jul
'02
10:08 a.m.
on 31/7/02 3:12 PM, Ethan Dicks at erd_6502(a)yahoo.com wrote:
I am looking for some DTL chips to make a repro
W706/W707 TTY
interface set for my Straight-8 and PDP-8/S (got *no* serial
I/O for them. :-( )
http://www.pdp8.net/w-boards/pics/w706.shtml?small
http://www.pdp8.net/w-boards/pics/w707.shtml?small
The chips there are:
W707
MC799 Dual Power Buffer (1)
MC790 Dual J-K Flip-Flop (8)
MC724 Quad Input Gate (5)
MC789 Hex Inverter (5)
W706
MC790 Dual J-K Flip-Flop (9)
MC789 Hex Inverter (6)
MC724 Quad Input Gate (5)
MC799 Dual Power Buffer (1)
The MC7xx were RTL, not DTL. Motorola made them. They typically used a 3.6
volt power supply, like the Fairchild uL9xx RTL series of the same era (late
'60s I think).
Arlen Michaels