1979 GTE Sylvania GT Matic CX9164W chassis E24-3

[pac.attack76]

Just got this set in a lot of 4. This one was a huge mess. Got it cleaned up but the plug is cut off at the end of the cord which isn't a problem but I'm hesitant on testing till I know more about the flyback on it. There is a small bulge on top with some cracking and one edge is warped a little. Will it hurt to try or should I replace that 1st? I've circled the areas.