This circuit, for frequencies up to 100 kHz, was found in American documentation from 1970. The circuit can serve as a reference for projects with modern equivalent components.
The current can be kept constant in the load circuit using the integrated regulator LM350. The...
This circuit was found in a 1967 Delco Radio documentation. The circuit has an input voltage of 250...
This circuit was found in a 1991 publication. The transistor can be a general-purpose type....