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(!!!) (Recommended Pair) 407A Western Electric used/very good 1961-1964 (40-41/26 and 38-40/26)

(!!!) (Recommended Pair) 407A Western Electric used/very good 1961-1964 (40-41/26 and 38-40/26)

By Tube World

$ 48.99

1 pair) 407A Western Electric used/very good "D" getter halo  in white boxes

1 tube) 40/26 and 41/26 (6413=1964)

1 tube) 38/26 and 40/26 (6152=1961)

 

(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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