the only music that i could actually study to was mozart.

WHOAAAA! that's an insane collection, skylab.

hi there, newbie on this forum (kind of got drawn into it through a transaction with rosgr63 - great guy and great transaction!) - does anybody have a good idea for a DIY headphone amp design based around the 6SN7, perhaps in conjunction with E88CC and 6SL7?    I'd like to mention that I'm...

well, this gave me a rude shock: https://www.tubeworld.com/5ar4.htm#5ar4metal i namely have a used one to sell and was trying to figure out how much it was worth....