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a few things, shunt tube connected (not malfuctioning), CRT not drawing excessive beam current (bias correct, no shorts in grids). Horz freq correct? B+ correct at the plate of the HOT, Screen voltage and HOT bias voltages correct, Correct drive form.
I would start by checking the HOT current by checking the V drop at the cathode fuse as specified.
Last edited by DaveWM; 10-12-2012 at 10:59 AM.
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