This circuit with germanium transistors is from 1960 and was found in Mullard's transistor application manual from 1960. The circuit can be adapted to use more modern transistors.
This circuit was found in the February 1993 issue of Radio Electronics magazine. Some components depend...
This modulator circuit can be used in AM transmitters up to about 10 W of power. The TDA2002 must...
This window comparator circuit was found in a Popular Electronics from the 90s. The circuit has a...