This new old stock-testing matched pair, black plates PHILCO 5U4GB rectifier tubes was tested in our TV-7/U and they measured:

Tube One:  62 / 62 (103% / 103% PHILCO stenciled on base with code 1063 044; 5U4GB stenciled on glass)
Tube Two:  62 / 62 (103% / 103% PHILCO stenciled on base with code 1063 6605; 5U4GB stenciled on glass)

Minimum is 40 and NOS-testing is 60 on the TV-7/U. 

Pair have black plates and top halo getters.

Tubes ships via United States Postal Service (USPS) Ground Advantage with tracking for domestic U.S. sale.  International orders ship via eBay International Shipping.

Package weighs twelve ounces (12 oz).

Check out other tubes in my eBay store for your equipment needs.

Combined shipping always welcomed.

TUBES ARE GUARANTEED GOOD AND IN WORKING ORDER AT SHIPMENT. TRANSIT VIA POST CAN DAMAGE TUBES.  THIS IS NO FAULT OF OURS BUT THE THIRD PARTY ENTITY THAT IS DELIVERING ITEM(S) TO YOU, I.E, USPS, UPS, FEDEX, YOUR NATIONAL CARRIER IF INTERNATIONAL, ETC. PLEASE INSURE THEM! WE CANNOT GUARANTEE FAILURES ON YOUR EQUIPMENT AFTER POWER UP AS THERE IS NO WAY TO ASCERTAIN HOW TUBES WILL INTERACT WITH YOUR ELECTRONICS; NOR IS THERE A WAY TO DETERMINE WHETHER THEY MAY HAVE FATAL FLAWS IN TUBES THEMSELVES!  THESE ARE USED VACUUM TUBES AND TIME MAY HAVE TAKEN A TOLL ON THEM OVER THE MANY YEARS SINCE THEY WERE MANUFACTURED. WE CAN ONLY TEST FOR THE PARAMETERS MENTIONED ABOVE IN ONE OR MORE OF THE FOLLOWING EQUIPMENT  WE USE FOR MEASURING:  TV-7/U, MAXI MATCHER 2 AND JACKSON 648.