This simple logic probe circuit was found in the August 1980 issue of Radio Electronics magazine. The circuit works with both TTL and CMOS logic.
This circuit is from Mallory 1968 documentation. The circuit makes use of period components and...
This circuit can be applied to several logics. The circuit is from an Electronics Now from the...
In figures 1 and 2 we have two current drains that can be made with operational amplifiers and...