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?
ericusrex
ei tanked years ago. too bad because their kt90 were the bomb in a pair of cary monos i used to own.
The US (NATO) bombed the factory a few years back.

We were still able to get EI tubes 2 years ago, but they don't /didn't really make anything we use but 12AT7s.