This circuit was found in a Hands On Electronics from the 90s. It is intended to supply old tape players to batteries with a voltage of 7.5 V from the 12 V of a car battery or source.
We found this circuit in an old American documentation. The circuit is suitable for motorcycles and...
This circuit was found in a 1977 Radio Handbook. Transistors admit equivalents. The lamp is an old...
This circuit was found in an old publication about transistors. The circuit can be used to drive...