In this 2001 circuit we have the way to trigger an SCR with a phototransistor. The circuit appears elsewhere in this section, obtained from publications from different eras.
Found in old documentation, this circuit is the receiver for the previous circuit. Components are...
The circuit shown is a constant current source which allows the reading of resistors on a very low...
The circuit shown in the figure is characterized by stability and the use of a common component. This...