Values in the table are per individual tube for amps designed to run in
class AB1. (most guitar/bass amps) Idle current values for amps running
in Class A (like the Vox AC30) will be somewhat higher. If you are not
sure what operating class your amp is or you don't know how to
SAFELY bias a tube amp, take it to a qualified amp tech.
The high voltages in a tube amp can be deadly and I've found that my
best customers are the live ones.
