Capacitor.

Hello,

3D models of the following had been made in Blender 2.49 version for Project OSCAR 3D model Repository and were rendered in Blender Internal Render engine.
I have re-done the material and lighting of these models in Blender 2.63 version and rendered with Cycles render engine.
 

A capacitor (originally known as condenser) is a passive two-terminal electrical component used to store energy in an electric field. The forms of practical capacitors vary widely, but all contain at least two electrical conductors separated by a dielectric (insulator).

Previously done in Blender 2.49

In one half i kept the color as blue and on the other was black. Below you can see the before and after rendered images.

Material setting for pins

Final Renders in Blender 2.63 Cycles render Engine