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(!!) (Best used single #1) 5998 Tungsol branded IBM black plates used/good 1960 rattle inside base (75/74ma) 1-3% section balance
(!!) (Best used single #1) 5998 Tungsol branded IBM black plates used/good 1960 rattle inside base (75/74ma) 1-3% section balance
$ 248.88
5998 Tungsol branded IBM black plates used/good 1960 in white box - rattle inside bas from dried glue particles - best triode section balance
1 section) 75ma Gm=12,700
1 section) 74ma Gm=12,800
Good Ma range 60-80ma
Good Gm range 10,000 - 12,000
See more: vacuum tube
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 (Best used single #1) 5998 Tungsol branded IBM black plates used/good 1960 rattle inside base (75/74ma) 1-3% section balance "Pin It")