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 found in the July 1992 issue of Radio Electronics magazine. The circuit has a...
This useful power supply can provide voltages from 0 to 12 V with currents up to 2 A, set in...
This circuit can be added to any audio amplifier design, consisting of a good tone control with an...