Application Notes:
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 one and a half turns from the supply end. Audio
sensitivity is very good when used with an ECM type microphone insert.
David's email : radio_david@yahoo.com
