NOS 6550 Longevity

Longevity NOS Tung-Sol Blackplates vs NOS GE 6550a in use?

williampowell01-29-2021 8:27pm

petg60 Details Discussions Posts This discussion Message User 1,486 posts 01-29-2021 at 11:59pm Copy Comment URL Report Comment Edit Delete Normally nos 6550 tubes would have a long lifespan, how much your amp pushes them is another point. G