Vol. 4, No. 3

Volume 4, Number 3

Volume 4, Number 3

On the Cover

In this issue
  • Heil Tubes
  • Tube-Heater Flash – Some Retrospective Thoughts
  • An Odd One from Arcturus
  • The Type A Transister – and the “First” Transister Radio
  • VT-155 – Mystery Solved!
  • “Undocumented Aliens” – Curse of the Restorer

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