This circuit was found in a 1964 documentation. It shows how to achieve automatic gain control for an oscillator. The transistors are of the time and the circuit controls signals from 2.6 to 3.1 kHz.
This circuit was suggested by Texas Instruments in a 1980s documentation. The transistor must be...
This circuit, found on Motorola's Linear Interface ICs uses the MC1536 as a driver for a 36 W or...
This two-transistor circuit was found in the January 1994 issue of Electronics Now. The circuit can...