Found in a 1980s telecommunications documentation, the circuit presented acts as a product detector. The modulator or mixer in the square may be that of the previous circuit.
This circuit was obtained from an American documentation of 1967. The circuit provides a 30 mA...
We found this flip-flop or bistable multivibrator in a 1990 Electronics Handbook. It uses a Norton...
We found this configuration in documentation from the 1970s, but all components are current. If a...