Simple AM radio

  
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This is a very simple AM radio circuit using only two transistors. The coil L1 and variable capacitor C1 forms the tank circuit. Transistor Q1 does the job of demodulation. The demodulated signal will be available at the base of Q1. This audio signal is coupled to the base of Q2 for further amplification. The amplified audio signal will be availabl
Simple AM radio - schematic

e at the collector of Q2. Please note that, this circuit will work properly only in places with good signal strength.



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