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(!!!!) (Best Overall Pair) JAN-12AT7WC Sylvania black plates NOS 1980 same date codes (9.0/9.2ma and 9.3/9.9ma) (close Gm)
(!!!!) (Best Overall Pair) JAN-12AT7WC Sylvania black plates NOS 1980 same date codes (9.0/9.2ma and 9.3/9.9ma) (close Gm)
$ 59.99
1 low noise pair) JAN-12AT7WC Sylvania NOS 1980
1 tube) 9.0/9.2ma Gm=5300/5300
1 tube) 9.3/9.9ma Gm=5400/5600
Matched on Amplitrex
Good Ma range 8-10ma
Good Gm range 4500-5500
See more: vacuum tube
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 (Best Overall Pair) JAN-12AT7WC Sylvania black plates NOS 1980 same date codes (9.0/9.2ma and 9.3/9.9ma) (close Gm) "Pin It")