Building A Super Spy Bug Transmitter Video Tutorial

A very small home made FM transmitter Bug using a single transistor and with a transmission range of 200 meters. This FM transmitter Bug is very easy to build. The size of the circuit board is ONLY 22mm x 10mm.

To make the PCB, using the toner transfer
method and Ferric Chloride.

Schematic

PCB

Parts used Building a super spy bug transmitter video tutorial

Home made PCB
2n3904 transistor
4.7p ceramic capacitor
1n ceramic capacitor
22n ceramic capacitor
1 – 5p to 30p air trimmer
360R resistor
4.7K resistor
10mm Mic
35cm antenna
Battery Plug
Some solder
19mm heatshrink