Transmitter/Receiver

Here is a small project about FM receiver that you can built with a little cost. The dificult point is to get the inductor coil, i think there a no electronic store that sell this coil.

The lower FET operates in common source mode, while the upper FET, operates in common gate, realising full high frequency gain. Coil details follow: L1 4 turns of 18swg air spaced with a 1cm diameter, the tap is one turn up from earth end…

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.

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