[N172241], Technical Note, Francis Robbins Upton, December 6th, 1880

Item

Abstract

"Arrangement for testing lamps at factory." The machine used to test lamps cannot power its own field, as this would throw off calcs of current. Other notes; suggests using coal oil lamp instead of standard candles, which are very expensive. n Fr 908 placement of lamps in 5th ave office.

Date

1880-12-06

Decade

1880-1889

Identifier

N172241

Folder Set

N172

Title

[N172241], Technical Note, Francis Robbins Upton, December 6th, 1880

Microfilm ID

39:902

Publisher

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

Timestamp

December 6, 1880