Re: GEC BT336 possible tube change
John . Thanks for the advise and the valve.
For the last few evenings i have had the set powered up for about a hour each night.
no improvements. in fact tonight after about 45 mins the picture at the top randumly come unstable i could correct it with the horizontal hold but its then on border line to the whole picture breaking up.
One other thing i did notice tonight is when the focus goes the brightness and contrast goes very poor also on a very light background it appears almost like a stain over a large part of the picture tube .Up until this point the picture is very good. Could this tube be faulty as well. I would put a picture on but i dont think it will show.
Nick heres a couple pics of things you asked for . Thanks Andy
|