Can you break the chain into 2 or three chains? That would protect from a bad board knocking
you totally out.
Just a thought.
as an old network dude, I hate bus topology (especially daisy chain). Star is your friend.
it is not like this.
i had one tube offline at chain (unplugged due to power loss) and rest is working
one cutoff dont slice chain, just signals pass the dead tube
dont forget to reset/power on/off controller after adding/powering on tubes
One of the other people in the GB posted that his would not start until bad board's were removed
thus my assumption.