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(!!) (Best Pair) 7F7 Sylvania round gray plates NOS 1950-1952 (2.3/2.7ma and 2.3/2.6ma) 1-2% matched
(!!) (Best Pair) 7F7 Sylvania round gray plates NOS 1950-1952 (2.3/2.7ma and 2.3/2.6ma) 1-2% matched
$ 32.99
1 pair) 7F7 Sylvania round gray plates NOS 1950-1952 same build
1 tube) 2.3/2.7ma Gm=1500/1600 Philco
1 tube) 2.3/2.6ma Gm=1500/1600 Sylvania
Matched on Amplitrex
Good Ma = 2-2.3ma
Good Gm = 1500-1600
- Masco MA-17
See more: vacuum tube
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 (Best Pair) 7F7 Sylvania round gray plates NOS 1950-1952 (2.3/2.7ma and 2.3/2.6ma) 1-2% matched&Category=vacuum tube&ImageURL=http://cdn.shopify.com/s/files/1/0333/7633/products/1_6981e786-507a-4dec-a4ac-9d205cf1fe3f.jpg?v=1673143669){kind=link}
 (Best Pair) 7F7 Sylvania round gray plates NOS 1950-1952 (2.3/2.7ma and 2.3/2.6ma) 1-2% matched "Pin It")