Blues DeVille Bias

[analogjunkie]

The amp started cutting out, so I decided to swap the tubes. My bias meter reads a max out of 3ma of current, when it should be well into the double digits.

Has anyone else had this problem?

[MWJB]

That's very odd, what do your plate, screen & negative grid voltages read?

R84 & R87 make up your bias "voltage divider" (Google this term), reduce R87 value by tacking a resistor in parallel, ONCE you are certain that there is nothing else adversely affecting the bias voltage.