Vol. 10, No. 3

Volume 10, Number 3

The Eimac X-8 triode of July, 1942, one of the Umpteen proto-types that led to the 527 power tube.

In this issue
  • Another Weird Tube: The “Mini- Loktal”
  • A Tale of Two Camera Tubes
  • Eimac’s Wartime Serial Numbers
  • Weird Tube of the Month – The A4444
  • Slitting Bases in the Old Days
  • Signal Corps Tubes – A 1931 View
  • RCA Radiotron Sales Manual
  • The Triad Type 30 Special

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