This circuit uses a contactor having been found in a 1987 publication. More modern equivalent devices may be used. The circuit has neon indicator lamps.
This RF wattmeter was found in an American 1980s documentation. The components are common and the...
September 2016 - can be found at Mouser Electronics the new amplifiers with digital variable gain...
The very high-input impedance of the CMOS gate allows this kind of device to be used as a...