Quote:
Originally posted by ropo
Hi!
Just wanted to say that I tend to agree with Ecto on this matter.
Shouldnt you have capasitors between 12V and ground level to get it to work, like in the diagrams refered to in the links?
Dont want to upset anyone here, hope you understand. 
Regards
ropo
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Nope, capacitors C1 and C2 are optional and should be used only if the LM317T voltage regulator is a long distance away to increase the signal. Isn't needed in this case with the small PCB board.
I have this very model working just fine for the last 2 months!!! Still runs my 120mm Panaflow for my rad fan. If any of the above was accurate it would not be working now would it!!!
