Quote:
Originally Posted by ms660
There shouldn't be any cathode voltage to speak of WRT chassis/ground because the cathode should be connected to chassis/ground.
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Absolutely!! The cathode should be at chassis potential. Make sure it is the cathode you are measuring (pin 2) counting clockwise from the gap. If it is pin 2, try connecting a piece of wire between pin 2 and chassis. It could be nothing more simple than a high resistance earth tag causing all the trouble.