(!!) (Best Single) 12AU7WA=6189 Sylvania NOS 1960's (10/10ma)
$ 29.99
1 low noise tube) 6189=12AU7WA Sylvania NOS 1960's
10ma Gm=2200
10ma Gm=2300
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 (Best Single) 12AU7WA=6189 Sylvania NOS 1960's (10/10ma) "Pin It")
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