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This circuit was obtained in 1965 General Electric documentation. SCRs can be modern common equivalents. The circuit fires with positive pulses. The load can be up to 7 A.
This circuit can be used as a buzzer from 3 different locations, allowing you to identify where it went...
We found this circuit in an Electronic Engineering of the 90s. The circuit can be implemented with any...
This adjustable source was found in a 1979 documentation, but all components are still common...