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GE Experimental 201A On UV-199 Base |
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This is a unique experimental tube produced by General Electric in the mid 1920's. The internal structure is that of a UV-201A, but the base is that of a UV-199. The only markings on this tube are the GE logo etched into the glass, and the "UV-201A" written in ink on the base. Presumably, GE was investigating a tube that could be substituted in radios designed for the UV-199 type tube that would give improved performance. As with the WL-112, it would appear that the potential market for such tubes was limited, and they never entered regular production. I know of one other such tube in a private collection. There is also a version that has a Bakelite base, and no tip. |
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