Tung-Sol KT120 tubes, set of 4. Lightly used, tested out good. $495 only!

Set of 4 lightly used Tung-Sol KT120 tubes. Tested out good with loads of life left. As the most powerful tube in the 6550, KT88 and KT90 family, they highly desired for the power output, reliability and long life (depending on component, they can last anywhere between 6,000 –  10,000 hours).