This circuit was found in a 1970s General Electric documentation. This circuit already used an emitting LED. The circuit operates at frequencies from 50 Hz to 50 kHz with short pulses
This converter or inverter uses components that are still common. The transformer is the type...
This circuit generates sine low-frequency signals. The frequency depends on the twin-T network....
This traditional oscillator circuit that can be found elsewhere in this section uses general...