This variable voltage regulator circuit has a power stage capable of supplying currents up to 1 A. The power transistor must be equipped with a heat sink.
This circuit was found in Motorola's 1968 documentation. It can be built on current equivalent...
This simple charger was found in a 1980s documentation. The transistor may be the TIP42 with a...
This article is from the Italian magazine Sperimentare number 11 of 1975. It can be assembled with...