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Very Simple FM Transmitter 1 Transistor (TPS54331DR)

2015-01-10 14:51  
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This is a low-costFMtransmitter. at the
expense of some features, such as the ability to adjust the frequency,
for the sake of simplicity. Method of building quite common withradio
amateurs but we don’t see it here too much. Each component gets the
pad-5 mm by 5 mm of copper-clad super glued to the ground plate as an
insulator. There is even a pictorial example of this method if you need
help with visualization.

FM transmitter
Missing can be hooked up tomicrophonedirectly. This tool can be used as a spy, because its shape is very small.