What is the missing component?
Industry guru Forrest M. Mims III has created a stumper.
Video game designer Bob Wheels needed an inexpensive,
counter-clockwise rotation detector for a radio-controlled car
that could withstand the busy hands of a teenaged game player
and endure lots of punishment. Can you figure out what's
missing? Go to www.Jameco.com/unmask to see if you are
correct and while you are there, sign-up for our free full