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(!!!) (Best Pair) 30 Brimar BVA made in USA but might be made in UK in white boxes 1940's (3.1ma and 3.3ma)
(!!!) (Best Pair) 30 Brimar BVA made in USA but might be made in UK in white boxes 1940's (3.1ma and 3.3ma)
$ 35.99
1 Pair) 30 Brimar BVA made in USA but might be made in UK in white boxes 1940's
1 tube) 3.1ma Gm=900
1 tube) 3.3ma Gm=900
NOS Ma = 3ma
NOS Gm = 800-900
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 (Best Pair) 30 Brimar BVA made in USA but might be made in UK in white boxes 1940's (3.1ma and 3.3ma) "Pin It")
 (Best Pair) 30 Brimar BVA made in USA but might be made in UK in white boxes 1940's (3.1ma and 3.3ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/30brim.jpg?v=1571438868){kind=link}