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Simple Transmitter/Reciever

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I want to build a circuit so that with a push of a button, the reciever gets the signal from the transmitter, that transfers to a transducer. Just like a TV remote except I only want one button, and have it be radio frequency transport.
Example: I have my transimitter with the one button triggering, and the reciever which triggers a light bulb to go on. With a push of a button, the light turns on. Just something similiar to that.
If there is a circuit that has multiple triggering/channels, I wouldn't mind, I could modify it.j The range can be at least 20-30 feet min.
It can work in any frequency.
Please ask me for more information.
Just a simple circuit remember. ;D :D

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