This circuit was found in a 1967 EEE. The components are from that time, but the circuit can be implemented with modern equivalent components.
The Exclusive-OR function is characterized by the truth table of the figure itself. We see then...
Found in a Westinghouse Silicon Power Handbook from the 60s, this circuit makes use of period...
We found this circuit in an old publication from Argentina. The relay must be of the sensitive type,...