A 2-watt resistor is going to dissipate a lot of heat. I would run it and see how it does. It may last 20 years.
If it burns out again try a 5 or 10 watt sandstone resistor. It will get hot too.
Might want to move that wire harness away from the resistor, or mount the new resistor up away from the wires.
This was normal for all the games that use this flashlamp circuit. Go with a 5 watt. Or get LEDs and the resistor will no longer be needed.
Those are under rated. Use a 5w sand/cement or 3w metal resistor.
The half Watt one can be changed to 1w.
Thanks for the replies guys. The resistor starts getting hot the moment the machine is turned on, and gets hotter every minute. I really don't know its purpose in the circuit. The lights work fine without it. I could try a larger wattage resistor but I think that would still get very hot too. I'm not really sure if there's a problem or not. I wonder if Williams ever had a service bulletin on this issue.
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