Vol. 3, No. 6

April 18, 2023July 19, 2024By 37
Volume 3, Number 6
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Volume 3, Number 6

On the Cover

A Cooper Hewitt style Mecury-arc rectifier

In this issue
  • Lumitron – Another Independent Argentine Tube Factory
  • A Guide to Buying and testing Early Tubes
  • RCS Parameter Limits, new Tubes
  • Tunograph
  • RCA Military Production, July 1952
  • An Ericsson Brochure

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