Receiver for the 40m band LM602 (CB25305E)

This circuit uses an FM IF transformer for tuning. The circuit is from a Radio Electronics magazine from April 1990.

Two-Transistor Darlington Amplifier (MSB035)
This two-transistor amplifier can be used as power stage for intercom, experimental receivers,...
Electroscope (CB22132E)
This sensitive circuit was found in old English documentation. Transistors may be modern...
Logarithmic Converter (CB19486E)
This configuration, already presented in other points of this section and website, is of a...