De Forest "Ultra Audion" and amplifier type P-2

De Forest "Ultra Audion" and amplifier type P-2

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Location
Currently not on view
Object Name
Amplifier
radio receiver
Other Terms
Amplifier; Radio
maker
De Forest Radio Telephone & Telegraph Co.
Measurements
overall: 13 1/8 in x 9 3/8 in x 20 3/4 in; 33.3375 cm x 23.8125 cm x 52.705 cm
ID Number
EM.315250
catalog number
315250
accession number
218872
patent number
836070
879532
841387
841387
979275
Credit Line
from the General Electric Research Laboratory, thru Miles J. Martin
See more items in
Work and Industry: Electricity
Data Source
National Museum of American History
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