Only for reference this is a circuito f a commercial receiver of the year 1958. The circuit uses coils and transformers hadr to find in our days. The circuit is destinated to receive MW stations.
March 2017 - Coilcraft SLR series inductors for currents up to 100 A can be obtained from Mouser...
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This circuit comes from an English publication of 1976, consisting of an experimental touch key....