8122 tube from working NCL 2000 - $65 - (Moses Lake, WA)

I KEPT THIS TUBE INTENDING TO BUILD A VHF AMP BUT ...........IT HAS NOT HAPPENED. WHEN THE POWER TRANSFORMER FAILED, WE SOLD THE AMP OFF IN PARTS, BUT KEPT THIS TUBE, IT CHECKS GOOD. SEE THE PHOTOS THE FILAMENT RESISTANCE CHECKED GOOD WITH 2.1 OHMS. WE ALSO CHECKED THE OTHER INTERNAL FOR SHORTS NON WERE FOUND. IF YOU HAVE A NCL 2000 HERE IS A BACK UP, THE CODE IS 70-22. IF YOU ARE THINKING OF BUILDING A RF AMP THIS TUBE NEEDS FORCED AIR COOLING. THAT IS WHY I KEPT THE SOCKET, CHIMNEY, CERAMIC STAND OFFS AND PLATE CLAMP WHICH ARE INCLUDED. THE SINGLE 8122 IS SMALL BUT IT CAN PRODUCE ALMOST A KW WITH 2200 VDC PLATE VOLTAGE, 450 MILLS OF PLATE CURRENT AND IT CAN OPERATE UP TO 500 MHZ

Posted in Moses Lake, WA, Electronics
From ebay.com - 1 month ago