This circuit makes use of a stroboscopic tube, a component that no longer exists today. The circuit is from the 70's and can be adapted to use mains voltage.
This simple diode test appears at other points in this section. Or circuit can be adapted to use...
Found in Electronics Now magazine in an issue from the 90s, this circuit is different from the...
This circuit inverts the phase of an audio signal, maintaining its intensity. The transistors can...