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485 Sylvania used/good 1930's no printing (7.9ma)

485 Sylvania used/good 1930's no printing (7.9ma)

By Tube World Express

$ 14.99

485 Sylvania used/good 1930's no printing

7.9ma

Gm=1300

  

 

(485 is a variant of Type 27 with 3V @ 1.25A filament)


(Sparton=The Sparks-Withington Co., Jackson, MI)

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