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(!!!!!) (Best Pair #2) ECC83=12AX7 Telefunken Germany <> smooth plates NOS 1966 (1.0/1.2ma and 1.0/1.3ma) (phono grade) 1-3% matched (very close Gm matching)

(!!!!!) (Best Pair #2) ECC83=12AX7 Telefunken Germany <> smooth plates NOS 1966 (1.0/1.2ma and 1.0/1.3ma) (phono grade) 1-3% matched (very close Gm matching)

$ 518.88

1 low noise pair) 12AX7=ECC83 Telefunken Germany <> bottom smooth plates NOS 1965-1966 in Telefunken boxes

1 tube) 1.0/1.3ma Gm=1500/1600 good printing (B1205701) 5 = year = 1965

1 tube) 1.0/1.2ma Gm=1600/1600 very good printing (B7206901) 6 = year = 1966


 

Good NOS Ma = 1.0mA-1.2mA+

Good NOS Gm = 1500-1800+


 

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