This circuit featuring a new quadruple operational amplifier was found in the March 1980 issue of Radio Electronics magazine. The circuit is to be powered by a symmetrical 15 V source.
This circuit is from a 1973 documentation. In it we have the way of using a FET as an input of...
This circuit is used to protect an amplifier from excessive power output that would cause problems for...
This circuit produces a square wave signal with the frequency determinated by R1 and C1. The upper limit...