-40%

Type 31 Sylvania audio radio amplifier vacuum tube valve tested ST shape 231 31

$ 8.18

  • Brand: SYLVANIA
  • Country/Region of Manufacture: United States
  • Model: 231 31
  • Seller Notes: “Tubes pictured are tubes sold.”
  • Tube Type: 231 31
  • Type: Vacuum Tube

Description

One (1) No type 31 Sylvania for US Navy vintage vacuum tube, ST shape, made in USA, tube has metal ribbed plates, clear top, bottom side foil getter, printed base, tube tests: 78 % 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.