Over the years I've owned a bunch of early Bally SS games and removed the steel guard around the transformer in the head. I have a box full because I never re-install them. After pulling one from a 1977 Eight Ball, I realized there are differences. These aren't shown in the part manuals. In the picture, #1 is out of Eight Ball. #2 in from a Paragon and #3 I'm not sure of. Does anyone bother to reinstall these? I'm doing a full cabinet repaint on a Paragon including inside the head so I'm going to install one back in a game for the 1st time.
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