Every shorted FBT I remember gave no raster. If it were the FBT
it should show high cathode current since the H. out would be
running into a non resonate circuit. Best test is to totally unhook it
& ring it with an analyst. A PIA to do !
Just how hot does it get ? Can you hold it, does it get squishy ?
Maybe it just smells old ?
73 Zeno
LFOD !