Find out if its the HV or video first.
When on but "acting up" put the back of your hand near
the face of the CRT. If you have HV you will feel the static pull
on your hairs. Try it when working also to get the feel of it.
Its Gods built in free HV probe !!
If its a video or CRT problem you will always feel the pull
after the normal warmup time.
Try it & get back to us.
Remember TV repair is "divide & conquer".
73 Zeno
