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Preamp tubes

 
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(!!!!!) (Best Single) EF806S=EF86 Telefunken Germany <> bottom like new 1963 (2.9mA and Gm=2100) (Neumann U67)

(!!!!!) (Best Single) EF806S=EF86 Telefunken Germany <> bottom like new 1963 (2.9mA and Gm=2100) (Neumann U67)

$ 278.88
(!!!!!) (Best Value Single) EF806S=EF86 Telefunken Germany <> bottom used/good 1963 good printing (2.4mA and Gm=1900) (Neumann U67)

(!!!!!) (Best Value Single) EF806S=EF86 Telefunken Germany <> bottom used/good 1963 good printing (2.4mA and Gm=1900) (Neumann U67)

$ 208.88
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