December 28th, 2011
(via Suitcase Wireless: 1924 | Shorpy Historical Photo Archive) Washington, D.C., circa 1924. “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, loudspeaker and other necessary units are completely self-contained in the carrying case. He has been able to hear Pacific Coast stations from this outfit.” View full size.

(via Suitcase Wireless: 1924 | Shorpy Historical Photo Archive)

Washington, D.C., circa 1924. “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, loudspeaker and other necessary units are completely self-contained in the carrying case. He has been able to hear Pacific Coast stations from this outfit.” View full size.

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34 notes Source: shorpy.com #Washington#D.C.#1924#Brent Daniel#Radio Laboratory#Bureau of Standards#portable#Super-Heterodyne#photo#vintage#shorpy
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