In addition to tone control, this circuit of the SGS 1982 linear integrated circuit manual has a loudness control. The supply must be made with a 24V voltage source.
This circuit is from a 1965 Motorola documentation. The transistors are of the time as is the...
This circuit measures the conductivity of a saline solution, which is affected by the electrolysis effect....
March 2017 - Coilcraft SLR series inductors for currents up to 100 A can be obtained from Mouser...