Surveillance Bug Circuits

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µCurrent Adaptor for multimeters
Radio Glen Transmitter
10Db-gain-amplifier
shortwave radio receiver circuit project
In-Car Charger And Switcher Circuit For SLA Battery Circuit
GPZ spike Detector
Simple Water Detector Circuit
Low noise microphone amplifier circuit
Solar-Powered High Efficiency Battery Charger
The Orange Amp Mods page
Input programming activity



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