This simple circuit for headphones or small speakers was found in documentation from the 90s. The circuit works with voltages from 5 to 9 V and has good gain.
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...