[N085003], Technical Note, Francis Robbins Upton, August 22nd, 1879

Item

Abstract

description of pt spiral lamp and test in vacuum; fr 789 conducting ires 11 ohms, discusses epxts of pt wire 20% pt irid in vacuum raised from cold to whitish yellow and how tested. Measuring resistance. Notes on foot pounds consumed per minute.

Date

1879-08-22

Decade

1870-1879

Identifier

N085003

Folder Set

N085

Title

[N085003], Technical Note, Francis Robbins Upton, August 22nd, 1879

Microfilm ID

35:785

Publisher

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