Brent Daniel, formerly of the Radio Laboratory of the Bureau of Standards at Washington, with the first portable Super-Heterodyne, his own design. The seven vacuum tubes, batteries, loop antenna, loud speaker, and other necessary units are completely self-contained in the carrying case. He has been able to hear Pacific Coast stations from this outfit

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Brent Daniel, formerly of the Radio Laboratory of the Bureau of Standards at Washington, with the first portable Super-Heterodyne, his own design. The seven vacuum tubes, batteries, loop antenna, loud speaker, and other necessary units are completely self-contained in the carrying case. He has been able to hear Pacific Coast stations from this outfit

Brent Daniel, formerly of the Radio Laboratory of the Bureau of Standards at Washington, with the first portable Super-Heterodyne, his own design. The seven vacuum tubes, batteries, loop antenna, loud speaker, and other necessary units are completely self-contained in the carrying case. He has been able to hear Pacific Coast stations from this outfit

De studio bij Radio Oranje

De studio bij Radio Oranje

B-T-MFDF-AWA-brochure-CAHS-625

B-T-MFDF-AWA-brochure-CAHS-625

Ku G. Tengwall med sin nya uppfinning av navigerings- och manöverapparat.

Ku G. Tengwall med sin nya uppfinning av navigerings- och manöverapparat.

Production. Airplane manufacture, general. Lunch period programs of music and news are presented daily at the Inglewood, California plant of North American Aviation, Incorporated. Speakers are located in each department. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tokyo, and the P-51 ("Mustang") fighter plane, which was first brought into prominence by the British raid on Dieppe

Production. Airplane manufacture, general. Lunch period programs of music and news are presented daily at the Inglewood, California plant of North American Aviation, Incorporated. Speakers are located in each department. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tokyo, and the P-51 ("Mustang") fighter plane, which was first brought into prominence by the British raid on Dieppe

Production. Airplane manufacture, general. Lunch period programs of music and news are presented daily at the Inglewood, California plant of North American Aviation, Incorporated. Speakers are located in each department. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tokyo, and the P-51 ("Mustang") fighter plane, which was first brought into prominence by the British raid on Dieppe

Production. Airplane manufacture, general. Lunch period programs of music and news are presented daily at the Inglewood, California plant of North American Aviation, Incorporated. Speakers are located in each department. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tokyo, and the P-51 ("Mustang") fighter plane, which was first brought into prominence by the British raid on Dieppe

Brent Daniel, formerly of the Radio Laboratory of the Bureau of Standards at Washington, with the first portable Super-Heterodyne, his own design. The seven vacuum tubes, batteries, loop antenna, loud speaker, and other necessary units are completely self-contained in the carrying case. He has been able to hear Pacific Coast stations from this outfit

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Public domain photograph of laboratory, science, research, free to use, no copyright restrictions image - Picryl description

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Date

01/01/1905
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Contributors

Harris & Ewing, photographer
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Source

Library of Congress
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http://www.loc.gov/
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No known restrictions on publication.

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