cathode shared by 3 triodes.

[joesatch]

trying to understand why V2 (really V1B) in this schematic is sharing the cathode of the clean stage triodes (parallel'd) . is it just to save on parts or is there some tonal reason for this?  if i wanted to run a separate cathode resistor/cap for V2 could i do it? What values?

[shooter]

my guess is there is some tonal effect, how much, type, i'm clueless, that's why they invented experimentation.

[Williamblake]

They make room for more switching shenanigans but 1k5 for three cathodes seems to be rather high.

[joesatch]

well i have the room and i have the parts. it dont feel right runnin 3 triodes thorough the same resistor/cap

[sluckey]

Make V2 cathode look just like V1 cathode.

[pdf64]

It’s just about saving on parts. Despite the smallish bypass cap, the channel switching means that there can’t be any signal interaction between the channels at the shared cathode.