This 1967 commercial radio covers 6 wave bands selected by appropriate coils. The circuit currently uses critical components, such as coils and transformers.
This power supply that can supply current according to the LEC is suitable for small projects. The LED...
Obtained in an American documentation from 1976, this circuit has a constant current source for...
This two-transistor output stage source currents up to 100 mA to a load using the 2N3906, but can...