FM Transmitter Bug Circuit Diagram Using BC548 Transistors

FM Transmitter Bug ckt

FM Transmitter Bug Circuit Diagram     This small FM Transmitter BugĀ Circuit Diagram 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 … Read more