Williams PS question

Wu

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Where can I find any info about Williams arcade game PS ,voltage?pinout?
Do Defender,Joust,Robotron use the same PS ?
 
Joust and Robotron use the same power supply, but Defender and Stargate used a different one. The main difference is that Joust/Robotron's PS has a separate heat sink with a transistor or two on it. Technically you could use either PS version in any of those games provided you had all the pieces.

As for pinouts and such, here is the Defender/Stargate PS:

DefenderPS.jpg


And here is the Joust/Robotron PS:

JoustPS.jpg
 
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