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.
This circuit was found in a Motorola documentation from 1968. The load current is 10 A. The...
This circuit, from 1988 documentation, allows the use of 15 to 60 W dimmed lamps without the need...
Found in a 1967 Delco documentation, this circuit can deliver power from 40 to 50 W at 8-ohm load....