This is the power step of the previous circuit. Output transistors must be mounted on good heat sinks. The circuit is from documentation from the 60s.
This overcurrent relay was obtained in a documentation from the 90's. The sensor consists of a...
This circuit was found in old documentation. The SCR can be any of the 106 family. Note the sensor...
Found in old documentation, this circuit uses special discharge lamps (neon) of the time. The...