This circuit allows you to adjust the balance between channels of a stereo amplifier. The circuit makes use of an analog indicator with zero in the center of the scale.
This circuit is suitable for use in radio receivers to improve the quality of weak signal...
This circuit was found in a 1973’s Japanese magazine. It uses transistors of the time and is...
Found in a 1980s documentation, this amplifier uses an integrated circuit that is not easy to...