407A Western Electric used/good “”D”” getter halo (6239=1962) in white box
35/26
42/26
(407A=396A with a 20V filament)
(407B=premium grade 407A with higher Gm and higher plate current specs, 20V Filament)
$8.40 $27.99
407A Western Electric used/good “”D”” getter halo (6239=1962) in white box
35/26
42/26
(407A=396A with a 20V filament)
(407B=premium grade 407A with higher Gm and higher plate current specs, 20V Filament)
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