History San Jose Research Library > History San Jose Online Catalog > The First American-built Poulsen Arc Transmitter, Palo Alto, California, 1910

Image / The First American-built Poulsen Arc Transmitter, Palo Alto, California, 1910

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Title
The First American-built Poulsen Arc Transmitter, Palo Alto, California, 1910
Date Created and/or Issued
1910/ /
Contributing Institution
History San Jose Research Library
Collection
History San Jose Online Catalog
Rights Information
Please contact the contributing institution for more information regarding the copyright status of this object.
Description
Twenty-five year old Douglas M. Perham (left) of Palo Alto worked with fellow technician C. Albertus and engineer Peter V. Jensen to build this 1910 Poulsen arc transmitter and receiver, the first built in Palo Alto, California, by Poulsen Wireless (later Federal Telegraph). Perham also worked with Jensen on experiments that led to the development of Jensen's Magnavox loud speaker. This photograph is featured on page 40 of Jane Morgan's book "Electronics in the West" with this caption: "(L to R) Douglas Perham, C. Albertus, Peter Jensen with 5 kw Federal-Poulsen arc station equipment, about 1910. Arc is mounted on box at left. Note tuning knobs and multiple-unit microphone above telegraph key on operator's table."
Type
image
Identifier
9BDCFD18-F3B3-45C4-8327-972984298965
2003-37-169
Subject
Federal Telegraph Company
Poulsen arc transmitter
Poulsen Wireless Telephone and Telegraph Company
Jensen, Peter V
Perham, Douglas M
Albertus, C

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