Telephone FM transmiter

  
Inside:
Repository
If you ever wondered how those phone bugs from spy movies work, here is the schematic for your very own. This simple FM transmitter uses a phone line to both power the device and receive the audio signal. Just hook it up to the phone line you want to monitor and tune your FM radio receiver to the transmitting frequency. If you still have a.
Telephone FM transmiter - schematic




Leave Comment

characters left:

New Circuits

.