Knob and tube wiring

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Knob and tube wiring was one of the earliest ways to distribute electricity throughout a building.

  • Knob, tube, and splice

  • Knob supporting a corner

  • Knob supporting a splice

  • Knob supporting a long run of wire

  • Knob serving multiple functions

  • Ceramic tubes

  • Ceramic junction for light socket

  • Splice with modern power outlet

  • Knob and tube in a 1930 home

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