This circuit was obtained from the October 1977 Radio Electronics magazine. The meter is analog, and the maximum selected power is 100W.
The integrated circuit used in this application is not currently common. The circuit is from 80s...
This circuit was obtained in an Electronic Design from the 90s. The circuit uses transistors from the...
This circuit hás a Power output of more than 1 W. It is used in small experimental or low power...