This good power amplifier, a few tens of watts, is part of an article in the December 1972 Radio Electronics magazine. The power supply must be symmetrical with at least 3 A.
This circuit appeared in the 1991 Electronics Experimenter Handbook. The circuit is for remote...
This circuit was found in Radio Electronics magazine from January 1959. The power transistor must...
This circuit uses an MW radio tuned to around 540 kHz to detect atmospheric signals, for example, from...