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"Own a piece of television history! Mechanical television systems were invented in the late 1920's, and produced a small, low resolution picture by spinning a disk having small perforations in front of a neon bulb, which was modulated with a video signal. Television signals were broadcast in the early 1930s, and some hobbyists built receivers from kits or from plans published in radio journals. Mechanical TV was not a commercial success, and was abandoned by the mid - 1930s. This scanning disc appears to be a homebrew setup, probably built from radio magazine plans. It consists of a 16 inch aluminum disc with small perforations, an open-frame motor (with a cloth-covered cord and round Bakelite plug), and a viewing eyepiece lens, all mounted in a wooden enclosure. The enclosure has a hinged rear cover and shelves to hold a neon light and video amplifier. I do not have a light or amplifier for this; however, these items should be reasonably easy to fabricate. When powered, the motor runs and the disc spins, but I have no way to otherwise determine its condition. This unit would be an interesting addition to your early TV collection, or an excellent candidate for nostalgic restoration. Sold as-is due to age. I will ship by USPS Parcel Post or FEDEX Ground, which ever has the best rate to your ZIP. Buyer pays actual shipping cost; no extra charge for careful packing. In-person pickup in Rochester, NY is always welcome. Check out my other auctions for more vintage electronics, and thanks for looking!"