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oh yea forgot the HV rectifier.
with poor HV (with CRT unplugged) the SOP is to replace the Horz out,Damper,shunt and HV rectifier with KNOWN good tubes. You cant go by tube testers.
if those four make no difference the check the Horz out tube pin voltages.
This assume of course you have checked the B+ to know the power supply is ok.
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