(!!!!) (Best Pair) CEA-5993 Bendix NOS 1950's (52/40 x 4 sections)
$ 98.88
1 pair) CEA-5993 Bendix NOS large size original boxes 1950's
1 tube) 52/40 and 52/40
1 tube) 52/40 and 52/40
(5993=Premium 6X4 with a different pin-out, excellent construction, long-life tube)
See more: vacuum tube
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 (Best Pair) CEA-5993 Bendix NOS 1950's (52/40 x 4 sections)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_156137f2-4877-4586-a56d-392a5f789def.jpg?v=1571439304){kind=link}
 (Best Pair) CEA-5993 Bendix NOS 1950's (52/40 x 4 sections) "Pin It")