The museum is open Fridays through Tuesdays 11 a.m. to 4 p.m. Free timed-entry passes are required. Review our latest visitor safety guidelines.

Edison "loudspeaking" telephone

Edison "loudspeaking" telephone

<< >>
Usage conditions apply
Description (Brief)
Edison Telephone Transmitter and Receiver, on wooden base plate. Transmitter and base plate both numbered 149. Last patent date on base plate June 15, 1878 under Edison's name. Receiver has chalk amplifier (?) attached. Edison Loudspeaking Telephone.
Currently not on view
Object Name
wall telephone
Date made
date made
ca 1879
associated person
Edison, Thomas Alva
Edison, Thomas Alva
overall: 14 in x 10 in x 9 1/4 in; 35.56 cm x 25.4 cm x 23.495 cm
ID Number
catalog number
serial number
accession number
Credit Line
Gift of Hilda P. Munroe
See more items in
Work and Industry: Electricity
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.


Add a comment about this object