This wired control circuit serves both volume and balance between channels. We found it in Radio Electronics magazine from August 1968. Transistors are common general-purpose types
In the figure we have the traditional configuration of a phase shift oscillator that produces a...
This circuit produces an intermittent sound in a ceramic piezoelectric transducer, for example, a simple...
If you have a common analog multimeter, you can increase its input resistance in the measurement of...