De Forest model PJ-1 audio amplifier

De Forest model PJ-1 audio amplifier

Usage conditions apply
Downloads
Location
Currently not on view
Object Name
Amplifier, Audio
audio amplifier
Maker
Western Union Corporation
maker
De Forest Radio Telephone & Telegraph Co.
Physical Description
glass (part: material)
metal (part: material)
wood (part: material)
plastic (part: material)
Measurements
overall: 8 in x 9 in x 7 in; 20.32 cm x 22.86 cm x 17.78 cm
ID Number
EM.331001
accession number
294351
collector/donor number
81-05
50-01
catalog number
331001
Credit Line
from Western Union Corporation
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.

Note: Comment submission is temporarily unavailable while we make improvements to the site. We apologize for the interruption. If you have a question relating to the museum's collections, please first check our Collections FAQ. If you require a personal response, please use our Contact page.