This is very stable, harmonic free, long range fm transmitter circuit which can be used for fm frequencies between 88 and 108 MHz. This can cover 5km range (long distance). It has a very stable ...

The project aims to create an interesting double-sideband (DSB) radiotelephone transmitter that is powered by the operator’s voice due to the instantaneous energy produced. The project aims to create ...

What if a doorbell never needed a battery and still sent signals wirelessly over long distances. This design can turn every ...

In the first three installments of this series, we discussed whether or not an old transmitter was even worth fixing, followed by some techniques I ve used to repair high-voltage power supplies, ...