This circuit is from a 1968 documentation. It generates a non-symmetrical signal with the waveform shown next to the diagram. Transistors are of the time, but modern equivalents can be used.
Waking up to a loud and clear sound from an audio oscillator, after up to 5 hours of sleep, or...
Short duration pulses or "clicks" can be generated with the circuit seen in the figure. The...
This circuit is from a 1992 Electronics Handbook. The circuit generates a special tone effect for...