[D7919L], Letter from Thomas H Ladd to Thomas Alva Edison, January 29th, 1879

Item

Abstract

Dynamo construction ideas; suggestion for dispensing with soft iron core. Suggests rings of Pt and Cu for lamp. Marg: "Referred to Upton to see what he has & for an answer. Shew ans to me."

Date

1879-01-29

Decade

1870-1879

Type

Identifier

D7919L

Folder Set

D7919

Title

[D7919L], Letter from Thomas H Ladd to Thomas Alva Edison, January 29th, 1879

Microfilm ID

50:14

Publisher

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