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Description For:

Wireless Microphone

Disclaimer

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Q1 amplifier the output from an electret microphone MiC1. Audio is fed into oscillator Q2, which modulates the signal. L1C1 is a tank circuit for operation in the 88-MHz region. The antenna is a 6-to 8-inch piece of wire. L1 is a variable inductor in the 1-mH range.
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