This circuit was found in a 1969 US documentation. It provides a signal that can be externally programmed as suggested circuits. The circuit can be used as a shield.
Found in a 1967 publication by General Electric, this SCR circuit generates voltages of 120 VAC at...
In the diagram, from a documentation from the 90s, we have the way to use an SCR in a full wave...
Found on a 1965 Radio Electronics, this circuit fires a signal xenon lamp applied to the SCR from...