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Thread: Vintage Hickok tube tester - photo

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  1. Sep 19, 2021, 03:42 PM #1
    Altair
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    Vintage Hickok tube tester - photo

    Vintage Hickok Model 539A tube tester from the 1950s.




    Previously:

    Vacuum tube tester - photo
    Tubemaster tube and battery tester - photo
    Vacuum tube pin straightener - GIF
    Vintage ammeter - photos
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    EclecticNeophyte (Sep 29, 2021), schuylergrace (Sep 20, 2021)
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