We found this circuit in the April 1992 issue of Radio Electronics magazine. The circuit uses an operating system that requires a symmetrical power supply.
This circuit uses separate sources for the power supply and the operational stage. The output...
This is a MOSFET version of a grid dip meter for frequencies between 1.8 MHz and 150 MHz,...
Found in the March 1974 Radio Electronics magazine, this circuit is designed to measure the level...