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1935 - PHOTONA several drive pulleys for tone discs and tremolo mechanism

WCAU PHOTONA

E&MP 88.009

Music Recording - Electronic

ca. 1935

Rear view of the "WCAU Photona", several drive pulleys for tone discs and tremolo mechanism.

The tremolo works on a rocker arm which varies the pitch of the note.

Photo No. 2


Original Caption by Science Service
© MODERN ART STUDIOS



National Museum of American History

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