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(!!!!) (BEST PAIR) 408A Western Electric NOS 1976 and 1984 (91/60 and 91/60)

(!!!!) (BEST PAIR) 408A Western Electric NOS 1976 and 1984 (91/60 and 91/60)

By Tube World

$ 47.99

1 pair) 408A Western Electric NOS 1976 and 1984

1 tube) 91/60 (7639=1976)

1 tube) 91/60 (8439=1984) 

 

Matched on B&K tester

Above 85 is strong



- Little Dot I+

20 volt filament

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