This circuit for analog VHF televisions was found in the 1989 Radio Electronics Experimenter magazine. It also works for FM receivers.
This automatic control for recording signal level was found in a Radio Electronics from September...
This switched-mode circuit was found in the April 1976 issue of Radio Electronics magazine. The...
This circuit, from a 303 Circuits from the 90s, uses a telephone pickup coil as a sensor to...