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Discussion Starter #1
Can a 9 volt circuit and a 12 volt circuit share a common ground? In other words, can I use the black negative lead from my 9V circuit with my 12V circuit? Thanks in advance for your assistance.
 

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Discussion Starter #3
Excellent! Thanks Ant! I've finished my UFO project and am finishing up the Cylon Raider. I'll be posting some pictures and short videos of both soon. Thanks again for producing such useful lighting boards for both. They really made the both projects far more fun to build.
 
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