We found this circuit in a 1969 General Electric documentation. The circuit uses transistors of the time and the diodes in the dotted board must be mounted on the output transistor heatsinks.
This solid-state relay (SSR) or shield was found in a 1995 Electronics Now. The transistor can be...
This simple intermittent siren circuit was found in a 1989 documentation. Both the intermittent and...
The circuit presented shows how to use a diode in temperature compensation of a push-pull output...