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(!) (Recommended Pair) 12B4A Sylvania NOS 1970 era (26ma and 26ma)

(!) (Recommended Pair) 12B4A Sylvania NOS 1970 era (26ma and 26ma)

$ 18.99

1 pair) 12B4A Sylvania NOS 1970 era same build in white boxes

1 tube) 26ma Gm=5900 rebranded GE 1971 (SE)

1 tube) 26ma Gm=6000 rebranded RCA

 

Matched on Amplitrex

Vplate=140V

Vgrid=-15V

Good mA range 25-40ma

Good Gm = 6000


 

 

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