bobbins of hydraulic pressed aluminum, silica, zircon and oxides of the serium group mangesia, clacium carbon with sketches for lamp, circuit drawings for EL, including multiple generators; drawing with text "get the diagrams relating to the rubber engine"; "after winding each layer of pyroinsulated wire cover the whole with pyroinsulation & then wind the other layer"

Edison, Thomas Alva

1879-00-00

1870-1879

Technical Note

Incandescent lamp

Vacuum and glass bulb

Electrical distribution system

N038009

N038

[N038009] Technical Note, c. 1879

32:379

Thomas Edison National Historical Park

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University