Thread: My 1st Predicta
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  #23  
Old 02-14-2010, 09:41 AM
DaveWM DaveWM is offline
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Join Date: Feb 2009
Location: Orlando FL
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Good thing I checked the HOT K current, 200ma, range should be 100-140.

I adj the screen voltage to get the current down to 110ma, of course I lost some HV and screen brightness but better that than the fly.

My guess is the higher line voltage translates into more voltage at the B+ (duh I did not check that yet) in which case the screen dropping resistor in series with the screen pot (width) is simply too low a value, that is I would think that if the pot was set to zero thee dropping resistor would set the max at no more than say 160v. Of course perhaps the idea is this is supposed to be set at the factory and hopefully the owner would not mess with it (but it is exposed at the back).

Well 1st things 1st, I will go back and check that B+ if its high I may up the resistance of the fusistor to try and compensate for the higher line voltage, then go back and check that screen/K current.
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