This circuit is from an American 1964 documentation. Transistors of the time are used, but modern equivalents can be employed.
We found this circuit in the February 1970 issue of Radio Electronics Magazine. It uses an RCA...
This power source can supply currents in the range of 100 mA to 1 A, depending on the transformer and the...
This circuit consists of a constant current source for charging 12 V batteries. The charge is...