9 May
2001
9 May
'01
1:23 a.m.
"TTL" refers to Transistor/Transistor Logic.
Low usually .5VDC to zero, high >~4VDC, usually 5VDC.
IIRC "ECL" is Emitter Coupled Logic. Don't remember the voltage levels.
Bob Mason
I think ECL had -3 volts as one of the levels... don't remember the rest
but I thought it was +10 or +12v.
Anyone here ever service a DEC KL10 and know?
Bill