"danyexp" wrote in message
...
Have an early 70s 13" Sony TV. Now and then all of the red "flickers" in
and
out of the picture. Is it a possible bad picture tube or ?

Thanks
AJ


Swap over the drives to the crt. This will give you some weird colours, but
it will also tell you if the problem is with the tube. If the picture still
flickers all red then the tube is faulty, if it is either geen or blue then
it is a drive fault.