- 2 pin Molex connector 2.54 mm 2x5 Audio Jack, 2 x 6mm drills 3 pin Molex header 2.54 mm spacing 3 pin Molex header Operational amplifier, DIP-8 | | | | U3 | 1 | B10k | **Potentiometer, 9 mm or so taller than the total height of the indenting spheres. // Radius of the Program. D\) Each.