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.
Found in Radio Electronics from the 90s, this circuit uses a 741 and can be changed to other...
This circuit with a MOSFET is from an old American documentation. The capacitor should be leak...
Using a 4046 PLL, which is uncommon today, this circuit was found in the October 1994 issue of...