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(!) (~ Best National Union ~) 45 National Union ST-14 NOS engraved base around 1940 (33ma)

(!) (~ Best National Union ~) 45 National Union ST-14 NOS engraved base around 1940 (33ma)

$ 134.88

1 tube) 45 National Union ST-14 NOS engraved base 

33ma Gm=2150

Tested on Amplitrex

Vplate=275V

Vgrid=-54.8V

Good NOS ma 30-35ma

Good NOS Gm 2000

 

Recommended for

Tektron

Deja Vu

Victor RE-36 1929

DIY

 

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