Not a tech expert but I’ve had a signal tube go bad in an integrated amp as well as in a DAC and in neither case did the component shutdown. Also, I have 11 gauge power cords on my 3 tube integrated amps, zero issues.
10 gauge power cord. Too much power for tube amp?
Tube amplifiers tend to be sensitive on incoming voltages. Is there a chance a bigger gauge power cord like 10 gauge may not be a good thing?
My amplifier tends to shut down occasionally upon start up. maybe moving to a higher gauge might be better. Does it matter?