Using a capacitor as a sensor, this circuit was found in the 1989 Radio Electronics Experimenter magazine. The circuit must be assembled in a shielded box.
This control for bass, midrange, and treble was found in the March 1995 issue of Electronics Now...
This audio oscillator configuration appears in many of our circuits and even in this section from...
This circuit can be used with the CIR12053 receiver or with others shown in this section of the...