The resistors R1 and R2 consist of 8 220 ohms x 2 W resistors connected in parallel. The dissipation must be higher for high transmitter power. The indicator can be the multimeter.
November 2016 - Mouser Electronics is offering the new series of Littelfuse HMOV varistors with...
This circuit was found in a 1977 Signetics manual. The 556 consists of a 555 double and the...
This voltage controlled oscillator uses a varicap to change the frequency. Usin a 100 turns coil...