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Omnigraph - Early Morse code trainer

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Published on Mar 31, 2016

This is a video of a working Omnigraph from the New England Wireless & Steam Museum. Patented in 1904 by Charles E. Chinnock of Brooklyn, NY, this device automatically produces dot-and-dash sounds of the telegraph code used in instructing radiotelegraph operators. This more complex model is circa 1910.

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