SUPER SIMPLE SHORTWAVE RECEIVER


Posted on Feb 6, 2014

Integrated circuit U1 (an NE602 double-balanced mixer) is a combination oscillator and frequency mixer. Signals from the antenna input (at J1) are fed through dc-blocking capacitor C1 to the RF-gain control, R1, and fed to the input of U1 at pins 1 and 2.The local-oscillator frequency, which varies with the settings of R2 and L2, is mixed internally within U..


SUPER SIMPLE SHORTWAVE RECEIVER
Click here to download the full size of the above Circuit.




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