Vol. 12, No. 6

Volume 12, Number 6

The front cover of an RCA service-dealer magazine from the mid-Twenties, featuring the “Selling Fool” doll. Graphic: Joe Knight

In this issue
  • Deciphering Date Coding of Post-WWII GE Tubes
  • The History of Vatea Radio and Electrical Corp.
  • National Union
  • The 12AP4 Picture Tube
  • Weird Tube of the Month: The Arc Oscillator
  • Radio Checkers and Chess
  • The Nuvistaplug
  • RCA Surrenders Rights to Four Trade-Marks
  • The Consentrated-Arc Lamp – Introduction
  • The Development of the Concentrated-Arc Lamp
  • Experiments With Magnets

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