Pll receiver


Posted on Sep 10, 2012    12297

This simple AM circuit uses a 561B. There's no inductance/capacitance tuning circuit. The 365 pF capacitor connected between pins 2 and 3 does all the tuning. The circuit needs a good outside antenna and a solid ground. And if you want to further improve operation, stick a broadband amplifier in front of the receiver.


Pll receiver
Click here to download the full size of the above Circuit.

Just make sure the input voltage does not climb over 0.5 volt rms.




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