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Mr. Baird's Amazing Mechanical Televisual Apparatus 
A rotating disc with a spiral of holes that demonstrates the principle behind the very first television invented by John Logie Baird in the 1920's. Displays a couple of short animation sequences. Uses 4 x AA cells. Read this encyclopedia article about John Logie Baird. Out of stock User Guide | Construction Sheet | Schematic | Source Code | Order Form |
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