(!!) (BEST PAIR) 6028=408A Tungsol NOS 1968 (military grade) (90/60 and 90/60)
$ 21.99
1 pair) 6028=408A Tungsol NOS 1968 (military grade)
1 tube) 90/60
1 tube) 90/60
- Little Dot I+
20 volt filament
Tested on B&K
See more: vacuum tube
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 (BEST PAIR) 6028=408A Tungsol NOS 1968 (military grade) (90/60 and 90/60) "Pin It")