This balance control for the channels of a stereo system was found in a 1969 Mullard documentation. The transistors may be the modern BC548 equivalents.
Indicated by the Maxim Engineering Journal in the 90's edition, this circuit uses only one...
Mouser Electronics owns the Texas Instruments DRV832x 3-Phase Gate Drivers capable of controlling...
This 80's circuit uses germanium transistors like the AC125, AC151, AC163, 2N506 and others to...