Electron Tube Co Pair (2) 810 Vacuum Tubes, High Power Transmitting Triodes NOS 2005 Date

This Electron Tube Co Pair (2) 810 Vacuum Tubes, High Power Transmitting Triodes, are NOS with 2005 Date Codes

 They were likely made by Shu Guang in China, under the Electron Tube Co. brand.

  **All the tubes I sell are tested and come with a money back, satisfaction guarantee**

  The Shu Guang company was a military supply company in China.

  Each one of the stock I have, has been tested in a Collins KW-1, 1000 watt transmitter at FULL Modulation, and are all performing up to spec as new tubes.

This is the only way to make sure they are good, and the ability to compare many 810 tubes in the KW-1 assures reliable comparative testing against well known brands like RCA and others.