My 2nd topic (because I had no success!) I'm gonna get some 6BQ6GTB, their specs is similar to 6DQ6. These TV tubes seems to have nice performance. I have seen a schematic posted by someone, but I was looking for something more common, with 12ax7 or similar as phase splitter (class AB1, of course). If I can't success, I'll replace the 6DQ6 with 6BQ6 in a schematic I found out there. The other option I've got is to reverse engeener a national branded tube amp I have to repair, with 6dq6 and 60W output.
Thanks again!
Thanks again!