Posted in: Musicouching by Gladis on May 28, 2012 | 0 Comments
A simple FM bug transmitter circuit idea shown here is very simple to build even for a new electronic hobbyist. Using just a single transistor as the main active component this device is able to pick and transmit even the slightest of audio vibration made anywhere in the vicinity of its mic, which can be heard loud and clear over an ordinary FM receiver tuned into the respective frequency.