(!!!) (Best Sounding Pair) 80 Sylvania Philco NOS 1950 (52-57/40 and 53-58/40)
$ 59.99
1 Pair) 80 Sylvania Philco NOS 1950
1 tube) 52/40 and 57/40
1 tube) 53/40 and 58/40
See more: vacuum tube
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 (Best Sounding Pair) 80 Sylvania Philco NOS 1950 (52-57/40 and 53-58/40)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_bd80e2e6-67ab-4e12-9c55-14b92015a9c2.jpg?v=1710017115){kind=link}
 (Best Sounding Pair) 80 Sylvania Philco NOS 1950 (52-57/40 and 53-58/40) "Pin It")