This circuit was found in an Electronic World of 1968. The circuit uses power transistors of the time. The transistors are for 25 W of dissipation.
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...