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/untangle
to see if you are correct and while you are there, sign-up for our free
full color catalog.