Audio-rf signal tracer probe

  
This economical signal tracer is useful for servicing and alignment work in receivers and low power transmitters. When switched to RF, the modulation on any signal is detected by the diode and amplified by the FET
Audio-rf signal tracer probe - schematic

A twin-core shielded lead can be used to connect the probe to an amplifier and to feed 6 volts to it.




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