This simple receiver that works with only 1.5 V, was found in a 1987 documentation. The integrated circuit is not very easy to obtain in our market and cannot be replaced. The coil consists of 100 turns of wire 32 or 30 in a ferrite rod and the tuning capacitor is of the type that can be obtained from transistor radios that are not in use. The phone must be magnetic. You will not need to use an antenna for local stations.
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