PTT or Push to Talk is the control that switches the speak-hear function on a transceiver. This circuit was found in the magazine of radio amateurs 73, in an edition of the 90s.
Obtained from a 1980s Linear Technology documentation, this circuit has a hysteresis of less than...
This high quality circuit with complementary symmetry was found in an Electronics World of 1966....
A capacitor stores electrical charges. This component is formed by two metal parts called...