This circuit makes use of comparators and common operational amplifiers, having been found in Motorola Linear Interface ICs of 1993. The circuit requires symmetrical source.
This circuit is from an American publication from 1975 and can use other operational amplifiers and...
This circuit generates audio signals for testing amplifiers and other equipment. The potentiometer R5...
This circuit was found in a 90s EDN. In it we have the use of LEDs and diodes to stabilize the supply...