I HAVE FOR SALE (4) 807 NATIONAL UNION NOS-NIB TESTED  MATCHED VACUUM TUBES.....

THEY HAVE BLACK PLATES AND TWIN BOTTOM D GETTERS...

MATCHING DATES ARE 5452.

THESE TUBES WERE TESTED ON MY RECENTLY CALIBRATED HICKOK 539C TESTER, ON WHICH THE MINIMUM IS 2400

TEST RESULTS ARE AS FOLLOWS;

#1 - 4600

#2 - 4600

#3 - 4600

#4 - 4800.

ALL TUBES I SELL ARE TESTED FOR MUTUAL CONDUCTIVITY, LIFE, NOISE AND GAS, WHEN APPLICABLE.

I GUARANTEE THESE TUBES  TO TEST GOOD UPON ARRIVAL, NO OTHER WARRANTY IS EXPRESSED OR IMPLIED.

If you ever have a problem with any thing i sell, please email me before leaving a negative feedback, and i am sure we can reach an equatable agreement, 

I WILL GLADLY COMBINE SHIPPING FOR MULTIPLE ITEMS, IF POSSIBLE.. AND PROVIDE INSURANCE AT NO CHARGE TO THE BIDDER ON ALL SALES OF $50 OR MORE WHEN SHIPPED VIA USPS WITHIN THE USA.

I WILL ONLY SHIP INTERNATIONALLY VIA USPS - ABSOLUTELY NO FEDEX,...