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1 NU National Union 6X5 GT Vacuum Tubes Tested Good On Calibrated Hickok, US $130 – Picture 0
1 NU National Union 6X5 GT Vacuum Tubes Tested Good On Calibrated Hickok, US $130 – Picture 0

1 Nu National Union 6x5 Gt Vacuum Tubes Tested Good On Calibrated Hickok

US $130

  • Valparaiso, Indiana, United States
  • Jun 10th
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1 National Union  6X5 GT Vacuum Tested Good On Calibrated Hickok There is no such thing as a GM value for this tube. This tube is tested in emissions only because its a rectifier diode tube. Min good on this tube is the Diode Ok line or 800/800 GM mark for reference. Theses tubes tested 1700/1850 mark for reference only, the tube is strong and balanced. The tubes come in a white box. This tube has a black plate. All tubes Passed The short test ,gas test, filament test and life test. All tube test in the green for emissions. This tube tested good on my Hickok 6000a tube tester. The tester was just calibrated by Paul Hart    Please see photo's for condition and test results. I can provide documentation that the tube tester was calibrated upon request. I will always list original photos of actual item you are receiving I will ship within 24 hours of payment received Any questions please send me a message APPRECIATE YOUR BUSINESS THANK You

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