|1.5 V FM bug v2
||A little fm bug on 1.5 V, of a bit better construction.
|Crystal controlled FM bug
||Yet another FM bug controller with crystal.
|Extra mini FM spy bug on 1.5V
||Yet another FM spy bug (but better) 88-109.5 MHz.
|FM bug 0.5W
||Schematics of a stronger FM bug, 500mW of RF power at 9V.
|FM bug 420-480 MHz
||Little FM bug on 420-480 MHz made out of Nokia parts.
|FM bug v2
|FM bug v4
||Strong and stable FM transmitter. Can be built as a bug.
|Small bug on 1.5V battery
||Stable and very small transmitter, 500 hours with AA battery.
|Spy bug in a pen
||Small and narrowed FM transmitter at 12V.
||Stronger bug and simple to build.