One (1) No type 58 Philco  vintage vacuum tube, ST shape, made in USA,

tube has metal ribbed plates, clear top, mica snubbers,

black glass, engraved base, tube tests: 86 %

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

 Tested on Triplett tube tester for shorts and leaks as well.

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