on 31/7/02 3:12 PM, Ethan Dicks at erd_6502_at_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
Received on Wed Jul 31 2002 - 17:08:01 BST