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Rare de Forest Audion Donated to ARRL, Mated with Vintage Radio for Museum Display

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ARRL

Well-Known Member
Nov 15, 2008
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An ARRL member from Virginia has donated a rare de Forest “round bulb” Audion to the League, which has paired the groundbreaking triode with a de Forest Receiver of similar vintage and rarity. Walt Bain, W4LTU, recently wrote ARRL Headquarters to see if the League would give the antique tube a home. Radio pioneer Lee de Forest filed his first patent for the Audion in 1907, describing it as a de...

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  • @ BJ radionut:
    +1
  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.


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