Flashlight Beams Make Music On Photo-Electric Marimba (Sep, 1935)

Flashlight Beams Make Music On Photo-Electric Marimba

MODERN electronic engineers duplicate the music of a primitive marimba band with light beams, photo-electric cells and radio tubes. Dr. Phillips Thomas of the Westinghouse Research laboratory recently demonstrated a “light music” instrument which played by waving flashlights held in each hand.

Dozens of photo-cells and radio tubes are lined up side by side atop the new musical device. For each musical note there is an oscillating circuit which produces electrical vibrations when light is directed on that circuits photo-cell. Reproducers convert the electrical vibrations into sound which is directed into the marimba pipes.

7 comments
  1. Supai says: August 3, 200711:20 am

    I seriously want one of these.

  2. jayessell says: August 3, 20075:27 pm

    As seen in “Tales of Futures Past”.

    http://davidszondy.com/…

  3. MAKE: Blog says: August 5, 200712:02 pm

    Flashlight beams make music on photo-electric marimba…

    Modern Mechanix 1935 MODERN electronic engineers duplicate the music of a primitive marimba band with light beams, photo-electric cells and radio tubes. Dr. Phillips Thomas of the Westinghouse Research laboratory recently demonstrated a “light music…

  4. [...] Flashlight beams make music on photo-electric marimba – Link. [...]

  5. [...] Modern Mechanix » Flashlight Beams Make Music On Photo-Electric Marimba [...]

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  7. [...] Who says old stuff isn’t cool.  This pix and article is from Modern Mechanix, Sept 1935.  The link to the website with the article is at: Modern Mechanix [...]

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