a website collaboration between Science Service and the Smithsonian Institution

1935 - PHOTONA photo cell with the revolving disc in the back

WCAU PHOTONA

E&MP 88.007

Music Recording - Electronic

ca. 1935

Front view of the "WCAU Photona" showing the photo cell with the revolving disc in the back.

You can see the light beams playing thru the disc.

Photo No. 6

Original Caption by Science Service
© MODERN ART STUDIOS



National Museum of American History

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