[N204065], Technical Note, Thomas Alva Edison, March 8th, 1883


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[N204065], Technical Note, Thomas Alva Edison, March 8th, 1883

Editor's Notes

p. 65: sketch of lamp with "perm magnet prevent carrying" p. 67: two lamp sketches, with plates inside filament and wired to one of the filament connections probably to prevent carrying. p. 69: another lamp with coil inside filament to prevent carrying. p. 71: "Lamps Mch 8 1883--TAE passed thread through tragacanth & die-- Made Lamp with P terminals large surface ditto N-- ditto both N. & P. don’t see much change regular Have ascertained that blackening of one of the platina wires in inside part is due to electrolysis & conductivity of the glass:-- & that Lime glass has less & Potash glass still less than our regular Lead glass am going make some bulbs of these glasss"



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