This circuit produces the sound of percussion such as blocks, drum, bell, etc. The frequency depends on the marked capacitors, which can have a wide range of values depending on the desired sound.
This zero crossing detector is of the 1993 Motorola Linear Interface ICs. The source is...
This circuit provides a high intensity pulsating signal to a speaker. The circuit is from an...
This oscillator with the CA3130 was obtained from an English publication from 1977. The circuit does...