3 Volt FM (miniature) Transmitter
The most powerful circuit weve seen that operates on such low voltage
(just two AA cells). A range of 100 meters can be expected and given a
good antenna and good conditions, 500 meters is not unusual. Can be
operated on up to about 9 volts. Transmits to the FM radio band.
Teaches basics of transmitters. Microphone is included.
