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(!) (BEST VALUE) 407A Western Electric tests like new 1960 (42/26 and 50/26)

(!) (BEST VALUE) 407A Western Electric tests like new 1960 (42/26 and 50/26)

$ 21.99

1 tube) 407A Western Electric used/like new "D" getter halo (6039=1960) in white box

42/26

50/26

 

26=65%

Tested on TV-7D/U 

 

 

(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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