FOUR VINTAGE DRAKE TYPE 300 BLACK LAMP HOLDER FOR SCREW TYPE LAMPS WITH 3 0R 6 WATT, 120 VOLT LAMPS INSTALLED AND MOUNTING BRACKETS, USED. I found these lamp holders about 30 years ago when cleaning out a scientific laboratory. I kept them thinking to use them in electronic projects.
Three "DIALCO" RED panel lamp indicators with fancy chrome (or polished stainless) cap. Screw terminals and 3 lock rings each. I believe they use Telephone Slide Switch No.
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