Telephone Surveilance Bug Circuits

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Light timer switch with PIC12F629
Electronic crowbar for AC or DC lines
Stabilized-capacitance-buffer
Sound Effects Generator Circuit
Microphone Mute circuit
digital sine wave synthesis
ac switching question
72 LED Clock
16 Stage Bi-Directional LED Sequencer circuit
PICs in Space
Precision Clock Generator
Low Cost integrator CC4069
A simple remote control switch circuit



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