Various diagram

This is a long range transmitter.This schema can send signals up to 2km.So that you have to use 1m copper wire.The power of this transmitter has been increased by usin two transistors. When you use this transmitter do give power with out connecting the antenna.Because it will burn your transistors.






Note


# The transformer T1 can be a general purpose audio driver transformer seen in transistor radios.

# The inductor L1 can be made by making 56 turns of 365 WG enameled copper wire on a 1 cm former.

# Inductor L2 can be a 10 mH general purpose radio frequency choke.

# The schema can be powered from a 9V PP3 battery.

Today Im going to going to show you a very wonderful schema diagram .The special thing of this schema is this schema can light up a LED more than the normal time.Sometimes it will light up our LED more than one month.so I suppose this would be a good news for you guys.Here I have used very common Transistor 2N3904.When I was making this schema I turned about  20 turns around the toroid. the wire was a small schema wire.    

 




# Build this schema on a PCB


 # Dont use more than 1.5V