Vol. 18, No. 3

Volume 18 - No. 3

On the Cover

In this issue
  • Vacuum Tubes Used in the First Trans-Atlantic Flight
  • High-Voltage Processing of Big PowerTubes
  • The Eimac View:
  • Conditioning of Large Radio-Frequency Power Tubes
  • Internal Control Symbols for RCA Tubes RCA (Dowd Archive)
  • Quality Control of Vacuum Tubes Philco Electronic Supervisor
  • The Catkin Tube Radio Engineering.
  • Post Office Controlled Valves A. C. Farnell and Arthur Wolfenden
  • TCA Awards The Rules

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