(!!!) (Best Pair) 5Z4 Raytheon NOS 1950 (54/40 and 54/40 x 2 tubes)
$ 24.99
1 pair) 5Z4 Raytheon NOS 1950
1 tube) 54/40 and 54/40
1 tube) 54/40 and 54/40
See more: vacuum tube
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 (Best Pair) 5Z4 Raytheon NOS 1950 (54/40 and 54/40 x 2 tubes)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_d42b3c6b-0e64-4430-99c9-5b037d723dd8.jpg?v=1682139839){kind=link}
 (Best Pair) 5Z4 Raytheon NOS 1950 (54/40 and 54/40 x 2 tubes) "Pin It")