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- Jun 30, 2015
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Anyone figure out how to add a servo without the retract kit? I'm guessing that flipping the P A F switch does something on the P3 and they took advantage of it. I just learned about transistor switches (mosfets) and how they work and perhaps when using the switch like they do it changes voltage somewhere which would allow you to use a mosfet and some sort of servo controller to get it to open and close...?