This circuit uses a dual-gate MOSFET, a rare component today. We found it in American documentation from the 1980s. The rest of the components are common.
This circuit was suggested by General Electric in a 1969 documentation. The transistors are of the...
This static switch circuit or solid-state contactor was found in a Motorola documentation from...
In the figure we have a typical constant current source circuit. Transistor can be equivalent as...