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(!!) (Good Value) 12AT7 Telefunken Fisher Diamond Bottom used/very good 1964 (10ma/12ma) (Highest mA and Gm)

(!!) (Good Value) 12AT7 Telefunken Fisher Diamond Bottom used/very good 1964 (10ma/12ma) (Highest mA and Gm)

By Tube World

$ 69.99

1 low noise tube) 12AT7 Telefunken Fisher Diamond Bottom used/good 1964 (pe) in WB faded printing 

1 section) 10ma Gm=5700

1 section) 12ma Gm=6100

 

Good used mA range 7-9ma

Good used Gm range 4000-5500

 

 

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