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(!!) (Best Single) 407A Western Electric NOS 1955 (44/26 and 45/26)

(!!) (Best Single) 407A Western Electric NOS 1955 (44/26 and 45/26)

$ 39.99

1 tube) 407A Western Electric NOS "D" getter halo (526=1955) in 1955 box

44/26

45/26

 

Tested on TV-7D/U

26=65%

 

 

(407A=396A with a 20V filament)
(407B=premium grade 407A with higher Gm and higher plate current specs, 20V Filament)
See more: vacuum tube
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