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Mini FM Transmitter Circuit

2016-04-03 14:55  
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Here is miniFM transmittercircuit. TheFM transmittercircuit using 2 transistor. Audio sensitivity is very good when used with an ECM type microphone insert. This smallFM transmitteruses 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 FM transmitter coil is four turns of 18swg wire wound around a quarter inch former.


Here is a schematic mini FM transmitter:

Mini FM Transmitter Circuit 400x208 Mini FM Transmitter Circuit

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