Did more research last nite. I looked at a CTC 9 so the info may be a bit off. First, remove the CRT socket and turn on the set. If the high voltage comes on OK, the tube is saturated and drawing too much current.
If this is the case, check all voltages on the color output plates (6FQ7) for around 350 volts or more. The cathodes must be a good deal more positive than the control grids (grid #1) to cut the tube off.
If HV is still low,
Check all connections around the flyback and look for a capacitor on the flyback off value. I recently went thru my TS-14 Motorola and found a .005 mfd new cap at .008 mfd upsetting the vertical. keep us updated
