This circuit was found in the March 1995 issue of Electronics Now magazine. The circuit requires a symmetrical power supply, and the FET is a common general-purpose type.
This amplifier with differential input uses two old op amps but can be implemented with modern op amps....
This power supply was found in the December 1970 issue of Radio Electronics magazine. The...
This circuit is a wireless temperature transmitter for RF signals in the range of 0.2 to 2 MHz...