hello, i have the following motors: **broken link removed** , they are going to be ran off of 5 AA batteries and i need to have a variable speed for them and i went to radio shack and they had a 25 ohm rheostat they said should work, but it only works and varies the speed for about 1/16 of a turn and it is all they have. none of the hobby stores can help me. all i need is a dial to control this, any one know of any
thanks
thanks