1 low noise tube) 12AU7 RCA tall gray plates “”D”” getter used/good (3-35=1953)
9.2ma Gm=1900
9.8ma Gm=2000
Good Ma range 8-10ma
Good Gm range 1800-2200
$9.00 $29.99
1 low noise tube) 12AU7 RCA tall gray plates “”D”” getter used/good (3-35=1953)
9.2ma Gm=1900
9.8ma Gm=2000
Good Ma range 8-10ma
Good Gm range 1800-2200
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