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400mW VCO FM Transmitter
Posted on Sunday, May 24, 2015   •   Category: FM Transmitters

400mW VCO FM Transmitter

This simple 400mW transmitter broadcasts audio on 87.5 - 108 MHz FM radio band. With good dipole antenna transmission range up to 4km is possible. Frequency is selected by adjusting R1 potentiometer. Transmitter should be powered by regulated 12-14V power supply with at least 100mA current rating.

     28W Power RF Amplifier for FM Broadcast 88-108 MHz 2SC1946
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     1 Watt FM Transmitter Booster
     USB FM Transmitter
     500mW FM / VHF Transmitter Amplifier / Booster
     Mini FM Transmitter
     Super Spy Transmitter Bug
400mW VCO FM Transmitter

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]



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