This circuit activates a buzzer when the voltage applied to the input falls below a preset value in R1. The circuit is from an 80's American documentation.
Tone controls for audio applications can also be considered filters that must attenuate certain...
The coils of this simple mid-wave radius are wound 28 or 26 on a 12 to 30 cm long ferrite rod and the...
This monostable circuit uses one of the two flip-flops available on the CMOS 4098 integrated...