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 is from an English publication from 1978. It generates random binary numbers when we...
We found this circuit in a Poptronics of February 2000. We can do its assembly using 4 1N4001...
Found in American documentation from the 90s, this circuit uses a GASFET of the time. The circuit is...