This circuit was found in Linear Technology Applications of 1997, using components of the time. The circuit transmits video signals bidirectionally over twisted pair.
This circuit was found in a 1982 Maplin documentation. The configuration applies to almost any JFET....
This circuit is a sensor for photodiodes that can be used in optical couplers, encoders and other...
This circuit was found in an American publication from the 60's. The transistor is made of...