Circuit indication for RF Output Transmitters - On Air

This is an On Air indicator, ie an indicator circuit dr RF transmission, very simple and useful for those who like RF. This circuit detects the RF output using a visual indicator, but with some modifications, the LED may be replaced by a relay or any other system that want to trigger when the transmitter is switched on. The output of the transmitter or other RF generator must be connected to this RF input circuit.

 Simple Circuit indication for RF Output Transmitters

Circuit indication for RF Output Transmitters - On Air


List of components

Resistor R1 560Ω eighth
Capacitor C1 330pF disc
C2 Capacitor 0.1μF disc
Diode D1 1N34 or 1N60
D2 LED
Transistor Q1 2N3904 or equivalent


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