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Attention: TDR Forum Junkies
To the point: Click this link and check out the Front Page News story(ies) where we are tracking the introduction of the 2025 Ram HD trucks.

Thanks, TDR Staff
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    Radiator fan controllers, solid state use pulse width modulation for fan rpm control

    Auto cool drives electric fans and its fully automatic Yes! It operates electric fans from very low speed to full RPM and its fully automatic. We have several YOUTUBE videos on the Auto Cool Controllers we build. http://www.youtube.com/watch?v=vjQZc-vN2fs Best regards, Darryl...
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    Radiator fan controllers, solid state use pulse width modulation for fan rpm control

    Radio Research, Ltd. designs and builds custom solid state radiator fan controllers. 40 amp Auto Cool II - 85 amp Auto Cool 85-A, Auto Cool III 125 amps, Auto Cool III-GI 80 amps at 24 volts. They are called Auto Cool Radiator Fan Controllers. The closed loop system monitors the OUTFLOW port...
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    Radiator fan - temperature control with pwm fan speed control - year warranty!

    Radio Research, Ltd. designs and builds custom solid state radiator fan controllers using solid state devices. They are called Auto Cool Radiator Fan Controllers. The closed loop system monitors the OUTFLOW port of your radiator and sets the fan RPM to control the temperature. It uses pulse...
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