Page 129 - 15 Dangerously Mad Projects for the Evil Genius

108 15 Dangerously Mad Projects for the Evil Genius

Rather than build a bug from scratch, this and in such aggressive terms, is priceless to the
project cunningly uses a cheap FM transmitter of Evil Genius.
the type employed in cars to play music from an
MP3 player. These devices can be acquired very
cheaply and can be set to transmit at any frequency The Bug
on the FM band. Ideally, this should be at a
FM transmitters for MP3 players expect to receive
frequency not in use by a radio station, but the Evil
a signal from an MP3 player that is already
Genius will occasionally confuse his minions by
amplified to a reasonable level. Unfortunately,
deliberately setting it to the frequency of their
microphones only produce a small electrical signal
favorite station and barking commands at them
that must be amplified before anything useful can
over the transmitter.
be done with it. So we have to make a little
The shocked looks on their little faces when amplifier to feed the transmitter. Figure 9-3 shows
they hear their radio addressing them personally, the schematic diagram for the bug.

Figure 9-3 The schematic diagram