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VT-14

 
    
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This exhibit is an early Structured Version of the VT-14 transmitting valve. The VT-14 appears on the pinch but the lettering on the glass is CG1162.
Thanks to Joe Gruber for sending the images.
The balloon envelope is 35 mm in diameter and, excluding the UV base pins, is 101 mm tall.
Reference: Joe Gruber.

 

Updated March 07, 2020.
shape:balloon construction:pinch type:triode age:pre.1920 base:uv pins:4 pin:
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