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Recommended
ceramic tip alignment tool for this kit |
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Recommended
ceramic tip alignment tool for this kit |
OPERATION : This simple transmitter transmits telephone conversation to a remote FM radio. The antenna
was intentionally left out in order to limit the transmission range.
The circuit does not need any battery to
operate. It taps energy from the telephone lines & will start transmission once the telephone is in use.
The radio frequency can be adjusted by tuning the trimmer cap. The frequency falls within FM broadcast
band which ranges from 88 ~ 108 MHz.
