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(!!!) 211D=VT-4-B Western Electric nickel base used/60% mid-1920's - reboxed (61.5ma)
(!!!) 211D=VT-4-B Western Electric nickel base used/60% mid-1920's - reboxed (61.5ma)
By Tube World
$ 499.99
211D=VT-4-B Western Electric nickel base used mid-1920's - reboxed - some pitting / oxidation / blemishes on base - see photo
61.5ma (60%)
Gm=2900 (80%)
1 TUBE ONLY - NOT A PAIR
Tested on Amplitrex
Vplate=500VDC
Vgrid=-1VDC
Good Ma range = 100 - 120ma
Good Gm range = 3600 - 4000
Recommended for
SET amps under 1000Vplate
See more: vacuum tube
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 211D=VT-4-B Western Electric nickel base used/60% mid-1920's - reboxed (61.5ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_21fb022d-e7d5-43c7-97cd-4f1632c21e57.jpg?v=1704245109){kind=link}
 211D=VT-4-B Western Electric nickel base used/60% mid-1920's - reboxed (61.5ma) "Pin It")