5X4G National Union Audio Receiver Rectifier Vacuum Tube Tested

Made in the USA

Black ribbed plates, single spacer, alignment tabs, hanging V filaments, square wire getter frame and a base getter flash

White flakes with no affect to function

Very nice condition

See the photos for more detail.

Excellent strong balanced test results for Emissions: 45 / 44

       For Emissions, 28 is the suggested ~60% reject value

No shorts.

For reference we used a calibrated Triplett 3444A Tester

Estimated delivery within the USA is from 3 to 7 business days.

Our standard shipping is US Postal 1^st class.

We combine shipping when applicable.

Please contact us with any questions