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We found this circuit in GE's 1977 semiconductor manual. The optical isolator uses an opto-SCR, and the lamp must be 25 W maximum. Only incandescent lamps should be used.
This circuit is from a 1977 timers Cookbook, but can still be easily assembled with the eventual 3130...
This circuit can be used to activate the lamp when it gets dark. We found the circuit in old...
This adjustable source was found in a 1979 documentation, but all components are still common...