Vol. 10, No. 6

Volume10, Number 6

Removing sealed-off tubes from a small Sealex machine at the De Forest Radio Co. plant in Passaic, NJ, about 1931.

In this issue
  • TCA Board Metting, Oct. 3
  • TCA Member Metting, Oct. 4
  • Further Investigation of the Rectifier-Gammatron
  • The Triple Twin and Dynamic Coupling
  • Farnsworth’s Cold-Cathode Electron Muliplier Uses Neither Grid Nor Filament
  • Weird Tube of the Month – The 5TV4
  • The Elusive Lestron
  • Tube Testing – And You Want Consistency?
  • Low-Voltage Tubes – The 6AJ5
  • RCA Factory Code – An Expansion

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