Restoring an oldie but goodie (Dewald 610LW) for a family member. Uses an 80 in a choke-type voltage doubler arrangement. I get no HV on the plate caps of the various tubes, and am seeing color on the rectifier tube plates after 15 or so seconds of power-on. Output side of the filter choke looks good with respect to resistance; new capacitors in the doubler circuit. Should this tube show any color at all except for filaments? I'm chasing any possible shorts down now.