This circuit was found in General Electric documentation from 1965. The transistors are from that time. The diodes consist of a component that contained them.
This circuit is from an 80's Radio Electronics. It triggers a load powered by the power grid from...
This circuit is used to test SCRs like the ones of TIC series. The simulation shows the power line...
This circuit is from a 1965 General Electric manual. It uses components from the time that admit...