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.