I would be suspicious of the CRT. Going to a bright dot was often seen
even if the CRT is bad.
When you turn off the TV HV remains charged but there is no deflection
so any electrons being emitted by the still hot cathode. They all land on
the same spot & can fool you.
IMHO best to run the set for 1/2 hr then turn off all lights in the room.
If you see some raster but very dark odds are its the CRT.
Price is another factor. Others know better than me but being a combo
it probably aint worth much of anything......
SHANGO is what we call a "character" in N.H. He does do some amazing
things with mostly pure junk. He is worth watching, you can learn a lot
from his antics. Thing that drives me nuts is this cat can make a 4 course
meal out of a potato chip. BUT I still watch him
73 Zeno
LFOD !