Found in a 1968 Ferranti documentation, this circuit can be implemented with modern equivalent semiconductors. With the indicated components the load can be a lamp up to 1 A.
Suggested by an Electronic Engineering of the 90s, this circuit serves to test the continuity of...
This circuit is part of an article published in the February 1994 Electronics Now magazine. The...
This circuit was obtained from ancient American documentation. The circuit combines a JFET with a...