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(!!!!!) (Best Pair #1) ECC83=12AX7 Telefunken Germany <> smooth plates NOS 1966-1969 (1.2/1.3ma and 1.2/1.3ma) (phono grade) 1-2% matched (Close Gm matching)

(!!!!!) (Best Pair #1) ECC83=12AX7 Telefunken Germany <> smooth plates NOS 1966-1969 (1.2/1.3ma and 1.2/1.3ma) (phono grade) 1-2% matched (Close Gm matching)

$ 698.88

1 low noise pair) ECC83=12AX7 Telefunken Germany <> smooth plates NOS 1966-1969 in Telefunken boxes - fairly good printing on both tubes

1 tube) 1.2/1.3ma Gm=1600/1700 (1966) 

1 tube) 1.2/1.3ma Gm=1700/1700 (1969)

 

Good NOS Ma = 1.0mA+

Good NOS Gm = 1500-1600+


 

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