I restored my 53-1750 2 years ago. All new caps, new tubes, radio alignment, phono overhaul, etc. Has been working GREAT ! Recently, when turned on, it works great but after it warms up, perhaps after about 5 minutes, all of a sudden, it develops loud static and radio reception disappears. This loud static happens on the AM radio band and also the "Special services" band. In phonograph mode, there is no static and the phonograph still plays great. Haven't started messing with it yet but what would be some top choices as to where to start to look for the cause ? Thanks[attachment=20493]
