Balanced Line Driver (CB6223E)

This 600-ohm line driver was found in a 1980s documentation. The integrated circuit used is not common today.

Bipolar Transistor Colpitts Oscillator (CB4582E)
The oscillator shown in the figure can generate signals between 3 and 15 MHz approximately, depending...
Half-Wave Rectifier LM741 (CB25218E)
This instrumentation circuit was found in the September 1989 issue of Radio Electronics magazine....
Audio Wattmeter (CB826E)
This circuit can measure audio output power up to 50 W. The circuit is wired to the output of an...