Quote Originally Posted by Simon Barden View Post
Don't forget that was a single stage triode, whereas the 12AX7 here is configured more like a power amp with two triodes, each one presumably doing half the input wave, so the overall result will be more symmetrical.

Good point, might be a good idea doing a set of scope screenshots for both a single triode-stage as well as some screenshots for two triode-stages in series as you would find in a guitar amp, we could then compare the results with each other.