I'm playing with a Fender Tweed circuit-a 5C3.
Not vintage, it's a project homebrew.
I was wondering what other octal tubes might be subbed for the 6SC7 preamp tubes to get a bit more headroom?
For those not familiar, Fender switched to a 12AY7/12AX7 later in this 2x6V6 powered amp.
Preferably with the same pinout.