Mr. Pinball Tip:

If only one of your Bally or Williams gas plasma displays doesn't work, it may be that the one is just bad. This is an easy method to check if a display glass is good or not.

First, tear off the plastic-type rubber on the front of the glass and look for a small wire, mostly at the bottom of the tube--not under. If this wire (I think it's a fuse that burns when air is getting inside the tube) has a grey spot, the display is bad and you must replace it. This is true for numeric and alphanumeric displays.

Sebastian Sievers
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