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.
March 2017 - Texas Instruments is already making available through Mouser Electronics the LP5907 an...
We got this circuit in an old publication from 1978. The circuit uses a phototransistor and an...
This simple PWM control was found in American documentation. We can use any power transistor...