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.
This circuit appears in various parts of this site and this section, with diverse origins. This is from...
This circuit, called Kames Dandy, can mix signals from a wide range of frequencies and is...
In the figure we have the way to obtain an adjustable constant current source of 2 mA. The...