(!!) (2nd BEST PAIR) 6CZ5 RCA branded GE black plate NOS 1960's (49.6/48.5mA)
By Tube World
$ 27.99
1 pair) 6CZ5 RCA branded GE black plate NOS 1960's
1 tube) 49.6ma Gm=5000
1 tube) 48.5ma Gm=5150
(you cannot sub a 6CZ5 for a 6973, see 6973 for more details)
Good NOS mA = 40-46mA
Good NOS Gm = 4500+
- Beam Power Tube
See more: vacuum tube
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 (2nd BEST PAIR) 6CZ5 RCA branded GE black plate NOS 1960's (49.6/48.5mA) "Pin It")