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Edward S. ("Ted") Rogers, Canadian 3BP, the inventor of the first American tube with an AC-operated filament that produced an acceptable low level of hum (1924-25) was recently honored on a stamp issued by the Canadian post office. The stamp (left) shows the tube in the foreground with a photo of the original Roger Batteryless Radio, its schematic diagram, and Rogers himself, in the background. Thanks to kc8er@oh.verio.com in Ham-Radio-History list. (Horacio Nigro-Uruguay)
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