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Derale 16579 Has Been REDESIGNED, No Longer a Positive Switching Circuit!

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Old 06-27-2012, 09:25 PM
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Derale 16579 Has Been REDESIGNED, No Longer a Positive Switching Circuit!

Hi everyone,

I have been running the original Derale #16759 Adjustable Fan Controller for years along with the along with the mod posted over at gmtips.com. Recently, the unit gave out. I ordered 2 more units, and now I see that new units are no longer utilizes a positive switching circuit.

I have been trying to figure out a new diagram that would work like the old one, but have not been successful. Wondering if anyone on here can lend a hand or point me into the direction I need in order to figure this out.

I have attached gmtips reworked diagram and the new derale diagram and the old derale diagram.
Attached Thumbnails Derale 16579 Has Been REDESIGNED, No Longer a Positive Switching Circuit!-derale-16759-adjustable-fan   Derale 16579 Has Been REDESIGNED, No Longer a Positive Switching Circuit!-derale-16759-adjustable-fan   Derale 16579 Has Been REDESIGNED, No Longer a Positive Switching Circuit!-gmtips.com-rewired-derale-system  
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