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 is from an 80's documentation, firing when the input voltage exceeds 5 V. The SCR can...
This circuit was found in the 1989 Radio Electronics Experimenter edition. The circuit has the...
This basic circuit can be used in signal followers and other applications where an RF signal is to be...