Organ Creates Photocell Music (Dec, 1934)

Organ Creates Photocell Music
BUILT from a dishwasher motor, an old keyboard and other gadgets, a homemade organ creates photoelectric music. A film sound track of tones is re-photographed on one of two revolving disks. Beams of light shine through these disks and reach a photocell. The light is then turned into sound, reproducing original tone.

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