In message , Thomas Alkire
writes
Hi all,
I would like to know if there are any studies on harmonic distortion
spectrum analysis vs heavy plate current for tubes such as 12AX7, 6V6,
6L6, EL84, EL34?

thanks,
thomas


Are you talking about the anode curves outside the normal operating
region? I would have though not as most published curves extend beyond
the acceptable dissipation.

Otherwise it's simply drawing the load line and working out the
non-linearity.

And why a poor weedy 12AX7 in the list?
--
Chris Morriss