One of eighty-six early incandescent lamps. Carboo
One of eighty-six early incandescent lamps. Carboon filament lamp, single loop filament, one support attached to side of bulb. Attachement method? Clear bulb. Top pip. Bayonet cap with large flat brass contact plates plaster insulation. Robertson ( etched on glass).150-16 D.E. (etched onglass) (volts & c.p.?).
- Object Number:
- carbon filament lamp
- Institution of Electronical Engineering
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