(!!) (Recommended Pair) 6CZ5 RCA black plate NOS 1960 era (50ma and 55ma)
By Tube World
$ 24.99
1 pair) 6CZ5 RCA black plate NOS 1960 era
1 tube) 50ma Gm=5200 (RCA)
1 tube) 55ma Gm=5300 (RCA branded Philco in white box)
(you cannot sub a 6CZ5 for a 6973, see 6973 for more details)
Good NOS mA =
Good NOS Gm =
- Beam Power Tube
See more: vacuum tube
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 (Recommended Pair) 6CZ5 RCA black plate NOS 1960 era (50ma and 55ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_716960f9-2df8-4150-ba61-8923730550d0.jpg?v=1713679215){kind=link}
 (Recommended Pair) 6CZ5 RCA black plate NOS 1960 era (50ma and 55ma) "Pin It")