Quoted from stangbat:You can loosen the front retainer and slide the coil forward, then rotate it and remove it. It is a PITA though.
Yes, annoying, they pop riveted all the transistors.
I would drill them all out and replace with a nut-and-bolt. That would make future repairs easier.
Remember, it's not a matter of *if* a driver transistor fails, but *when* a transistor fails.
Why did they put driver transistors under the playfield? Especially since that's where all the vibration and dirt originate. Were they trying to imitate Gottlieb System 80 or what?