Vol. 2, No. 5

April 18, 2023July 19, 2023By 1
Volume 2, Number 5
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Volume 2, Number 5

On the Cover

Bob Reidmuller’s $3 (!) Audion display

In this issue
  • Readers Report
  • An Audion Story
  • Econco and Tube Rebuilding
  • The Army-Navy “Preferred” Lists
  • The Signal Corps Writes a Tube Spec

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