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01A National Union NOS 1940's (3.1ma)

$ 35.99

1 tube) 01A Nat. Union NOS original box (3.1ma Gm=750)

Tested on Amplitrex

Good Ma = 3ma

Good Gm = 700-800

 

(Filament=5V @ 250ma, Vplate max=135V)


- Crosley C5 1926

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