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VT-11

 
See also:
The Twenty-Kilowatt Tube - Irving Langmuir - GE Tubes 1915-18
    
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Type G Pliotron with the UV four pin bayonet base was used by the Signal Corps in the USA and designated VT-11. It was first sold to the US Army in 1918 and found service during WWI. The slightly earlier version used by the US Navy was the CG-886 initially fitted with a three pin base with the pins arranged at the points of an equilateral triangle.
The anode is made of nickel and is a closed cylinder about 8 mm in diameter and 10 mm long.
From the Tyne Collection.
The original box. The dimensions are: 57 mm square and 127 mm tall.
The box end with Type VT-11 printed on it.
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.
References: J Gruber, & 1047. Type VT-11 was first introduced in 1918.

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
3.9
1.1
Updated February 08, 2021.
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