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.
This circuit was found in a 1967s Motorola documentation. The circuit regulates the voltage of an...
Found in National Semiconductor documentation from the 1990s, this circuit employs basic...
In this circuit, which uses one of the four comparators of an LM339 (or LM139 or 239), capacitor C1 and...