WTD: support ICs - test-drb@ccmp.vtda.org

1 Aug 2002

Hi
 By the way, there is a company in Texas some place that
is actually making DTL and most likely RTL as well. They
make parts for obsolete equipment. I've lost the url
but I found it with a search on the web. I was always
afraid to even ask what they were charging for the
parts ( most were mil spec as well ).
Dwight

...
 From: "Arlen Michaels" &lt;arlen(a)acm.org&gt;

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