This exhibit is a mystery as it lacks a Type designation. Radiotron in later RCA production is a trade name not a type.The base has short pegs suitable for a bayonet holder. The locating pip confirms this. Probably the UV base. ![](../pics/abo0048a.jpg)
The RCA logo on the dome.The wide glass tube envelope is 25 mm in diameter, and excluding the UV base pins is 76 mm tall.Reference: Observation. |
Updated July 12, 2014.
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