This circuit was found in a Popular Electronics from the 90s. Its purpose is to disable the output of an FM or VHF receiver between stations, preventing the reproduction of hiss.
Common diodes when forward biased present a voltage fall of about 0.6 to 0.7 V. This voltage fall...
This amplifier, found in a 1981 publication, provides 15 W lHF power with a supply voltage of 14.4...
Currents of a few milliamps are enough to drive loads up to 500 mA with this circuit. The...