Quote:
Originally Posted by Dorothy
Is one a ground ? 
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With PC fans (DC) one is hot, one is ground, yes. The third is for logic like speed control, etc.
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Ross
http://orchids-ross.blogspot.com/
I don't do most Dendros or large, "floofy orchids". For me it's minis (like Angraecoides), Masdies, Paphs, and others that crept in somewhere along the line. See my orchid list for complete collection (usually not current.)