testing cathode current

[timmy]

i have a dvom and it has m.a that goes to 10 amp could i use this and put it in series somewhere? just to get an idea what the current is. problem is every pot i believe was turned and the fly was replaced so from what i understand if this cathode current is to high it could overheat the fly and burn up so after replacing resistors and tubes and a silicon dual diode and a focus coil all burned,i would rather not take a chance. would the horiz output tube be the one area to check the current by putting a meter in series with the single wire plug on top of the tube, would this be a reliable option? i am not sure at this point.