This circuit can be used as a shield for touch control. The circuit can use any common FET like the BF245 and should never be powered by a source without a transformer.
This 1975 circuit for automotive applications replaces the mechanical vibrator found in old cars...
This is the name given to this small MW transmitter that can function as a wireless microphone. The...
This oscillator uses a ceramic resonator to determine the frequency. This kind of element is found...