Shameless plug - if anyone's looking for the Brimar's and wants to save a few bucks, I'm selling mine.
Edit: Never mind, kept them.
Edited by nspindel - 4/10/11 at 10:21pm
I know this thread is long time ago, but did you still remember that when you install the 6H13C on the MK VI, do you have to adjust the bias. I've just installed the 6H13C on the unit, and there is no sound output; the left channel meter peak beyond 100ma and the right channel read at 35ma.
I have clean the contacts and rotated the tubes but with the same result. Are the tubes defected?
Any help would be greatly appreciated.