Radio Control Switch Circuits
Can I make a simple SW Reciever?
I have a 13.50 MHz AM Transmitter Circuit. Can you suggest a SW Reciever Circuit which will recieve 13.50 MHz radio waves (only) and amplify it and send it to a switch (transistor or relays) which can control a LED or something as an indication? And another group of questions related to the topic :-
+Will aluminium foil block/reflect back radio waves hitting on it?
+How can we make a coating of copper of a bit of aluminium foil, by electroplating? I have only copper wires, no copper coins or anything else…
P.S. Please avoid ICs in the SW Circuit. Amplification part can be omitted if IC is an unavoidable part of the amplifying section of the circuit.
You don’t need any ICs. SW receivers with AM modulation are very easy to make.
Electroplating of copper is also easy. Use a copper sulphate solution to do this.
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