This circuit uses only transistors and was found in a 2003 documentation. Transistor 2N3055 must be mounted on a heat sink and the voltage is set to R10.
We found this circuit in a 1965 publication by General Electric. The zener is 8.2 V x 1 W and the...
This circuit was found in a 1994 documentation. The transistors can be BC558 and BC548 and the...
This amplifier stage, obtained in a 1980 publication, has a low input impedance and a high output...