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(!!) (Best Value) ECC83=12AX7 Telefunken Germany <> bottom smooth plates used/tests like new 1960's faded printing (Gm=2000/1700 and 2.0/1.3ma)

(!!) (Best Value) ECC83=12AX7 Telefunken Germany <> bottom smooth plates used/tests like new 1960's faded printing (Gm=2000/1700 and 2.0/1.3ma)

$ 129.99

1 low noise tube) ECC83=12AX7 Telefunken Germany <> bottom smooth plates used/tests like new 1960's faded printing in white box (good value)

1 section) Gm=2000 (2.0ma)

1 section) Gm=1700 (1.3ma)

 

Good Ma used = 0.8ma - 1.0ma

Good Gm used = 1500-1600

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