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(!) NY-247=47 National Union Balloon used/good 1930's (22.6ma) (and strong Gm)

(!) NY-247=47 National Union Balloon used/good 1930's (22.6ma) (and strong Gm)

$ 34.99

NY-247=47 National Union Balloon used/good 1930's in WB

22.6ma

Gm=2280

 

 

Vplate=250V

Vscreen=250V

Vgrid=-15V

NOS Iplate=27ma

NOS Gm=2350

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