Funny they aren’t mentioned yet but the Russian Winged C 6550’s are readily available nos for under $100 each. My favorite power tubes ,and I’ve tried many, are the winged c el34’s and kt88’s.
Amplifier Power tubes - important to sound?
i replaced all the small tubes on my mono amplifiers and now I'm left with replacing the stock Power tubes, kt88.
I like what I hear with 12 new small tubes - telefunken nos 12ax7 and 12at7.
Now I am left with replacing 16 kt88 stock JJ tubes. will Probably use Siemens 6550 nos.
How much will this impact what I hear do you think? I recall hearing that power tubes don't make that much of a difference.