In this circuit we have the way to use two transistors as a regenerative pair simulating an SCR. The circuit is from a 1965 General Electric documentation.
This circuit was found in a 90’s Popular Electronics. The circuit is used to analyze noise in...
This circuit activates a flashlight for a specified time. The relay is a highly sensitive reed...
Suggested by Sprague in the 1980s documentation, this circuit can control three-phase AC motors....