Simple AM Radio (CB408E)

This sensitive AM radio doesn’t need external antenna, picking easily local stations. The output is in a piezo or crystal earphone and the circuit is powered from a 9 V battery. L1 is formed by 100 turns of 26 or 28 AWG wire in a 1 cm x 20 or 30 cm ferrite core.

 

Simple AM Radio
Simple AM Radio

 

 


Circuit Bench