This circuit is one of many of its kind that can be found on this site. This one is from a September 1987 Radio Electronics. The triac must be controlled according to the load.
This circuit is designed to analyze the distortion of an audio signal. We found it in an article in...
The frequency of this circuit depends on the capacitor. The unijunction transistor can be the...
This is a possible setting for a Colpitts oscillator operating in the audio track. The shunt coil...