trelja--according to one of the dealers here, the jadis tubes are chinese made. you're right, i've got a bit more investigating to do. i have not yet heard them and the local hk dealers are not too familiar with the "let me borrow a broken in set of 8" routine. they're said to be warmer than the svetlana 6550c's that i'm using. i guess i take some comfort in the fact that jadis uses ei kt90's (which i've used on again and off again in my system).