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(!!!) (#2 27 Single) 127 Arcturus Blue Balloon used/good 1930 era in white box (4.3ma)

(!!!) (#2 27 Single) 127 Arcturus Blue Balloon used/good 1930 era in white box (4.3ma)

$ 32.99

1 tube) 127 Arcturus Blue Balloon used/good 1930 era in white box

4.3ma

Gm=800

 

Tested on Amplitrex

Vplate=250V

Vgriod=-21V

NOS Ma = 4-5ma

NOS Gm=800-900

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