The circuit shown consists of a power stage for relay excitation. 2N3053 can be a BD135 and 2N406 can be replaced with a BD136. R3 depends on the trigger voltage.
This circuit was found in an old 1970s telecommunication documentation. It is suitable for...
We found this circuit in documentation from Analog Devices from the 90s. The components are from...
This circuit was obtained in a documentation from the 80's. The components used are of the time,...