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Spy Telephone circuit Schematic

2016-02-16 11:09  
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ThisFM spy telephone circuitis mounted serrial with the phone line. When is signal on the wires thistransmitterwill radiate airwaves thru the wires wich act as anntenna. There is no need for batteries because it got his voltage supply from the phone lines.

There is no need for antenna too, the phone wires radiate all the radio energy. The transmision frequency can be set from the trimmers.
Have a nice spy!

Spy telephone circuit diagram


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