Vol. 6, No. 6

Volume 6, Number 6

Volume 6, Number 6

On the Cover

In this issue
  • The George C. Clark Tube
  • The Armor AC-100 Tube
  • “Tubes That Weren’t”
  • British Valve Nomenclature – Everyready
  • Sweep Tubes in “Really Early” TV Sets
  • Those 12-Volt Car Tubes
  • July, 1937-(Invention of the Klystron)
  • RCA Fixes 6BQ6 Quality
  • Johnsonburg Radio Corporation

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