What happened to Ei?

Hello everyone, I'm looking for some Ei 6CA7 "fat bottle" tubes and can't find any anywhere! What has happened to this tube/company?

ericusrex09-27-2007 7:31pm

kgturner Details Discussions Posts This discussion Message User 664 posts 09-27-2007 at 08:51pm Copy Comment URL Report Comment Edit Delete ei tanked years ago. too bad because their kt90 were the bomb in a pair of cary monos i used to own.