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485 Sparton engraved base used/good 1936 (5.5ma)

485 Sparton engraved base used/good 1936 (5.5ma)

By Tube World Express

$ 17.99

485 Sparton engraved base used/good 1936

5.5ma

Gm=1300

  

 

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


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

See more: vacuum tube
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