[N311049], Technical Note, Hugh De Coursey Hamilton, December 14th, 1885

Item

Abstract

"Phonoplex Exp Making comparison between receiving instruments by shunting with condenser, Siemens form spool wound 282 ohms iron diaphragm 19/1000 thick, steel pin, receive trhough 140 sheets of condenser"; followed by other sets of spool resistance and sheets of condenser, also Russia Iron diaphragm

Mentions

Date

1885-12-14

Decade

1880-1889

Identifier

N311049

Folder Set

N311

Title

[N311049], Technical Note, Hugh De Coursey Hamilton, December 14th, 1885

Microfilm ID

42:377

Publisher

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

Item sets