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VT-1

Sensibly equivalent to:
WE-203A
    
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This VT-1 was made for the US Navy where it was known as the 203B.
The anode plates are corrugated and the main support is shaped to provide rigidity. With this extra strength the fragile glass rod support was no longer required.
We have a slightly differently constructed version here.
Thanks to Joe Gruber for sending the images.
The wide glass tube envelope is 32 mm in diameter, and including the base pins is 105 mm tall.
References: Joe Gruber, 1047 & Internet.

 

Pin Connections
UV
1
2
3
4
g1
f
f
a

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
2.2
1.0
Updated November 26, 2020.
shape:wide.glass.tube construction:pinch type:triode age:pre.1920 base:uv pins:4 pin:1.g1 pin:2.f pin:3.f pin:4.a
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