One side of a double pole switch can be grounded, so that the fan
    motors
       are shunted. This locks the fans up real good. Center terminal is
the
       fan, opposite terminal is the power.

       Lynn E. Hanover

       Clever Lynn!
       I won't be afraid to use that one!
       Larry



    I got that one racing slot cars. Trigger off shunts the motor and locks
    the rear wheels. When tire dope came in we added a 1 1/2 volt battery
in
    our pockets wired in reverse to the track voltage, for even better
    brakes.

    Lynn E. Hanover


AHA !!  I was wondering how you guys got your slot cars to brake so
effectively.  Thanks for your help.   Dave D.



Lynn,
But my pulse width modulation slot car controller got banned after the first
night of racing...... motor ran cooler, so speed didn't fall off during long
events.
LArry



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