3  RCA  6S4 A Vacuum Tubes  Tested Good On Calibrated Hickok


This tubes tested at - 4050 - 4050 - 3900

Minimum value - 2700


The tubes come in the original boxes.

 All tubes Passed The short test ,gas test, filament test and life test. 

This tube tested good on my Hickok 6000a tube tester. It 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

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