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(!!) (Best Pair) 76 Sylvania black plate NOS mid-1940's, 1 tube branded Delco (5.2/5.3ma) 1-2% matched
(!!) (Best Pair) 76 Sylvania black plate NOS mid-1940's, 1 tube branded Delco (5.2/5.3ma) 1-2% matched
$ 49.99
1 pair) 76 Sylvania black plate NOS mid-1940's, 1 tube branded Delco - same build
1 tube) 5.2ma Gm=1400 Sylvania branded DELCO
1 tube) 5.3ma Gm=1400 Sylvania
Matched on Amplitrex
Vplate=250V
Vgrid=-13.5V
Good Ma range = 4.5 - 5ma
Good Gm range = 1300-1400
See more: vacuum tube
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 (Best Pair) 76 Sylvania black plate NOS mid-1940's, 1 tube branded Delco (5.2/5.3ma) 1-2% matched&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_2aebad7c-2226-4a7c-b14c-9b60327e46f5.jpg?v=1716842648){kind=link}
 (Best Pair) 76 Sylvania black plate NOS mid-1940's, 1 tube branded Delco (5.2/5.3ma) 1-2% matched "Pin It")