6 May
2016
6 May
'16
8:46 a.m.
On 05/05/2016 09:40 PM, Lyndon Nerenberg wrote:
On 2016-05-05 6:47 PM, Mouse wrote:
Hmmm, I don't know. (Don't remember the earlier part of
discussion.)
Some discrete transistor implementations were actually
pretty high power, they ran off 12 V rails or even more. I
know some old computer I poked into (SEL 12-bit, maybe) must
have been using 24 V rails, they had 2 W load resistors on
the transistor collectors, and the boards were badly burned
around those resistors! Some systems use a variant of ECL,
which of course really burned power, too.
Jon
faster, lower power, maybe
even cheaper, etc.
TTL could never claim "lower power" :-)