2 DEFOREST AUDIO GLOBE TUBES 481 Antique Type 81 UX-281 381 Sylvania Engraved
ENGRAVED BASE on the deforest the Sylvania has scratched in base SYL.
2 RCA UX-281 GLOBE VACUUM TUBES TYPE 81 281 381 Engraved Base TV-7 Tested strong
ENGRAVED BASES ARE CLEAN AND TIGHT WITH WHITE BOXES.
2 -81 GLOBE vacuum TUBES CX-381 UX-281 Type 81 CUNNINGHAM TV-7 TESTED NOS 60/40
TESTED LIKE NEW VERY STRONG 40 BOTTOM NUMBER REPRESENTS MINIMUM pass fail range. THESE TESTED like new 60/40.
