Electronics Projects, Transmitter Circuits article
"analog circuits projects, simple circuit projects, " tagged with
Spy circuit consists of 3 sections there are about 30 pieces transmitter circuit is more complex, but in most circuits modified for reinforcement, additions fm transmitter varieties has been described
Market located in the library known as the FM BUG popular video circuit operation
note All circuits should be used for experimental purposes only and should not be used for any covert activities.
source: talkingelectronics.com/projects/Spy%20Circuits/SpyCircuits-1.html alternative link: transmitter-circuits-spy-circuits.RAR alternative link2