Quote:
Originally Posted by Captainclock
It does have the phoenolic end cap held in place with two small screws which is how I actually discovered that the HV conncetion was broken, which is more than likely why the TV was acting up and wasn't getting the B+ and HV that it was supposed to be getting.
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A broken HV connection will only reduce effective HV at the CRT....It should either roughly maintain load on the flyback (perhaps the most power hungry stage in the set) or reduce the load on the flyback. An unloaded fly consumes LESS power so the B+ should either be unaffected or INCREASE slightly (from reduced load) if the HV connection opens like that.....You do realize HV and B+ are two completely separate power sources in a TV right? The power transformer derived or rectified power line derived 150V to 475V B+ found in all tube TV receivers is considered LOW VOLTAGE in TV parlance. The 3KV to 50KV found on the second anode connection of the CRT (usually, but not always flyback derived) is called HV (High Voltage).
You still most likely still have a low B+ issue. If not, then....In most TVs there is also a roughly1000V B+ BOOST rail that is flyback derived (often from the damper in B&W sets, often from it's own diode in color sets).....The BOOST line usually feeds the vertical stage (sometimes CRT screen grid, and other things too).....So if the horizontal is out of whack bad enough to kill or reduce the boost it will affect the vertical, but usually not close to the degree that your screen shots show.