SUPER SIMPLE SHORTWAVE RECEIVER

  
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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 - schematic




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