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VHF / FM Two Stage Adjustable Voice Transmitter Circuit

(C) 2016 By: Circuits-Schematics.Com
This is a very small and powerful VHF or FM band adjustable Voice Transmitter Circuit.
The antenna is a small piece of straight or flex wire 18 inches long. It operates in the 147 to 170 MHz band or the 88 to 108 band.
For operation in the VHF band, air wind 3 tight turns of # 20 copper wire around a 3/16” drill bit.
For operation in the FM band air wind 5 turns of # 20 copper wire around a 3/16” drill bit.
To tune the device, turn your dial at the point on your receiver to where you want the frequency and tune the trimmer that is connected to the coil. Next, tune the trimmer connected to the antenna for maximum range.
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