Four (4) 117Z6GT 117Z6G Sylvania vintage vacuum tubes, made in USA,

both are black parallel plates, bottom side foil getter, tubes test: 

94, 94 %
94, 92 %
94, 94 %
94, 94 % 

Price is for all tubes pictured.

We test all tubes we sell! We will combine shipping! Check out my other tubes!

Scale 1-100, good quality percentage on my Triplett starts at 54.