Without regulation, this basic circuit has the output current, and voltage determined by the transformer. The input can be 110 V and 220 V if the transformer used is of the indicated type.
For bench use, this circuit functions as a bistable safety switch. The circuit is from a Radio...
The circuit shown is from Motorola's 1990 Linear Databook. Shaded components are optional. The...
We have here an ultra-simple amplifier stage of just one transistor, which can have some uses on...