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Electronic Surveillance Spy Circuits, Schematics and Diagrams
(C) 2012  Bugplan.Com
John S. Wilson, Electronics Engineer - Surveillance Circuits and Diagrams
electronic spy circuits and diagrams
1/2 Watt  FM Transmitter - Xtal Body Wire - BBG Wall, Door, Window Audio Listening Circuit - A15 FM Transmitter Circuit - Xtal Locked - XMT Infrared Receiver Circuit - IR12 Telephone Bug  Listening Circuit - TE23 Tracking Transmitter Circuit - Xtral Locked - TT5 "Silent Carrier" To "Beep" Converter - DDC Concealed Briefcase Interface Circuit - RTR Hi-Gain Speaker Listening Amplifier Circuit - AA5 "Distance" Audio Amplifier Listening  Circuit - DAA Repeater / Recorder Circuit - VOX3 Pen FM Transmitter - Xtal Locked Links

The Electronic Surveillance Circuits you will find on this site are unique and can not be found anywhere
else on the net. The enclosed electronic circuits, are but a handfull - out of thousands, that have been designed,
engineered and - for years, manufactured by John S. Wilson Jr, who has a proven track record with over 50 years in the
Design, Engineering, and implementation of Electronic Surveillance Circuits, both in the lab and the field level. All are Free.
Enjoy.
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electronic circuits and diagrams - electronic spy circuits
audio amplifier circuit diagram
audio circuit listening device schematic
telephone circuit bug circuit and schematic
audio circuit diagram and schematic