FM Transmitter


Posted on Feb 5, 2014

This small transmitter uses a hartley type oscillator. Normally the capacitor in the tank circuit would connect at the base of the transistor, but at VHF the base emitter capacitance of the transistor acts as a short circuit, so in effect, it still is. The coil is four turns of 18swg wire wound around a quarter inch former. The aerial tap is about


FM Transmitter
Click here to download the full size of the above Circuit.

one and a half turns from the supply end. Audio sensitivity is very good when used with an ECM type microphone insert.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Start-and-run-motor-circuit
The simple solar energy of adaptation supplies power the control device of the street lamp designs and realizes
mercury v8 monterey 1963 wiring diagram
Model 300 Receiver
Power Supply Unit
MS51C61 holiday lights ASIC circuit
100W switching power amplifier circuit
AD594 to a 597 basic application circuit
Application circuit temperature sensor
A feedback circuit and the differential input stage bias circuit is provided separately



Top