Audio Cable Tester (CB3827E)

This simple circuit tests both monophonic and other two-wire audio cables. The circuit is powered by two common batteries.

Galvanometer Amplifier (CB11857E)
The purpose of this circuit is to increase the sensitivity of a galvanometer, making it possible to...
Operational Half Wave Rectifier (CB14840E)
We found this configuration in documentation from the 1980s. It applies to almost any operational...
15 V x 1A Power Supply (CB13923E)
This circuit shows how to use a 12 V regulator to obtain a higher voltage output. The...