This circuit was found in an 80s Hands On Electronics. It senses the water level in a reservoir by driving a pump when needed.
This 600 kHz circuit is designed to locate a lost boat anchor. The circuit has a range of up to 10...
This circuit was obtained from an Auguist 1974 Everyday Electronics magazine. The circuit is still...
Toshiba MOSV MOSFETs These and others from the same line of Toshiba power MOSFETs are available from...