This control for bass, midrange, and treble was found in the March 1995 issue of Electronics Now magazine. The circuit requires a dual power supply.
We find this vibrato configuration with transistors in a 1987 documentation. The components are still...
This circuit generates sequence of pulses in order and times determined by the capacitors in pins...
This circuit is from the 1990 Motorola Linear Databook. The integrated circuit used is the LF355,...