Music Recording - Electronic
Rear and top view of the "WCAU Photona".
The driving pulleys for the tone discs, complicated wiring, transformers used for lighting and nine hundred six volt lamps which is the source of light played on the photo-electric cells, producing the unusual tones of this new instrument.
May 18, 1935
This rear view of the Photona exposes its complicated maze of wiring, controlling the 900 lights and numerous rotating disks that combine with photoelectric cells to produce a modern kind of music.
Original Caption by Science Service