Creeper,
Hmmmm, I bought some Sylviania 6L6's ( for sale BTW ) I found them to be slightly better in the mids. But defintiely lacked the bass. I guess from your experince it won't be worth my trouble to find the Russian 6n3c's. I am a big fan of the el34's, but as my handle implies I also like the kt88. Try the Sovtek kt88, it has a bit of the 34 sweetness, and a ton more bass.
Hmmmm, I bought some Sylviania 6L6's ( for sale BTW ) I found them to be slightly better in the mids. But defintiely lacked the bass. I guess from your experince it won't be worth my trouble to find the Russian 6n3c's. I am a big fan of the el34's, but as my handle implies I also like the kt88. Try the Sovtek kt88, it has a bit of the 34 sweetness, and a ton more bass.