A ONE TRANSISTOR FM TRANSMITTER

  
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The 2N2222 circuitry is a three-element, phase-shift oscillator circuit, designed to yield a 1,000-Hz sine wave. The 1,000-Hz sine wave is then applied to the TCG-610 varactor diode, 6 pF at 4 V, which changes the tank capacitance, thus varying the rf oscillator frequency at a 1,000-Hz rate. The 1,000-? potentiometer in the collector circuit can be adjusted..
A ONE TRANSISTOR FM TRANSMITTER - schematic




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