Vol. 4, No. 1

April 18, 2023March 19, 2024By 32
Volume 4, Number 1
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Volume 4, Number 1

On the Cover

The inner structure of the ill-fated 6AE4 magnetron

In this issue
  • “Missing” Tubes – Ever Wonder
  • The GE UV-213 Rectifier
  • “DOD” Tubes
  • Amperex’s Inside-Out Tube
  • The Nuvi-Story
  • Lenkurt and Pointy-Pinned SN7’s
  • Tube Tester’s Invade Supermarkets
  • Index to 1999-2001 Pubs

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