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