One of eighty-six early incandescent lamps. Carbon

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Science Museum Group
© The Board of Trustees of the Science Museum

One of eighty-six early incandescent lamps. Carbon filament lamp, M-shaped cylindrical thikish filament. Filament attached by paste to plpatinum tubes crumped over lead in wires in split internal stem, apparently attached to copper wires at other side of glass. Clear cylindrical bulb. No visible pip. Attached to cylindrical metal base by plaster, with wooden plug (now loose) carrying two contact posts and with female screw thread. No markings. Some similar feature to 1923-173/85.

Details

Category:
Lighting
Object Number:
1923-173/56
type:
carbon filament lamp
credit:
Institution of Electronical Engineering