This interesting benchtop circuit was found in the May 1977 issue of Radio Electronics magazine. The circuit has frequency adjustment, and the waveform selected by a switch.
This one-channel circuit was found in a 90s Popular Electronics, functioning as a vox. Components...
This circuit simulates a unijunction transistor trigger with two bipolar transistors. The circuit...
Suggested by an American technical documentation, this circuit is polarized in order to provide an...