Found in American documentation this circuit uses transistors of the time. The circuit can be made with current components. It works as a trigger working with 600 ohm signals.
This circuit was found in Motorola's 1968 documentation. The SCRs are then replaceable with...
This circuit was found in a French magazine Toute LÉlectronique from 1978. Transistors are not...
This circuit can be used in a single optical link or optical communication system and even using an...