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Image: Edwin Armstrong wife and portable superhet radio

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Edwin_Armstrong_wife_and_portable_superhet_radio.jpg ‎(497 × 329 pixels, file size: 24 KB, MIME type: image/jpeg)

Description: American engineer Edwin Armstrong the inventor of the superheterodyne radio receiver, with his new wife Esther Marion MacInnis in Palm Beach, Florida, in 1923. The radio is a portable superheterodyne set that Armstrong built as a gift for her.
Title: Edwin Armstrong wife and portable superhet radio
Credit: http://www.k3dav.com/edwinhowardarmstrong.htm
Author: Unknown authorUnknown author
Permission: Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country. Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Edwin_Armstrong_wife_and_portable_superhet_radio.jpg
Usage Terms: Public domain
License: Public domain
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