I have a Craftsman power hacksaw that’s at least 50 years old. I’ve owned it for more than 30 myself. Yesterday the motor gave up. Tag shows a frame size of 45A. Evidently that’s now obsolete. It appears that a frame size 48H will fit. My question is what type of motor do I look for? A split phase of some sort? Capacitor start? Etc,etc….Any help greatly appreciated!