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One(1) No type 5U4G Zenith vintage vacuum tube, ST shape, made in USA,
tube has black ribbed plates, clear top,bottom side rectangular getter,
printed base, tube tests: 86, 84 %
We test all tubes we sell! We willcombine shipping! Check out my other tubes!
Tested on Triplett tube tester forshorts and leaks as well.
Scale 1-100, good quality percentageon my Triplett starts at 54.
