This sign uses fiber optics and a color wheel to produce a kaleidoscope of constantly changing colors and optical effects.  When on, the Zenith logo alternates from being bright yellow to twinkling white while several colors at a time march across the Chromacolor logo from left to right.  All the colors that are seen are Yellow, Orange, Red, Green, Blue, and Purple and White. The light source is a 20 watt halogen light.  I acquired this sign, February 2004, after the ebay auction for this sign ended without any bids and I contacted the seller afterwards to secure it for the original starting price of $35.00 plus shipping.

Measurements:
Height...10.5 inches
Width...27.5 inches
Depth...6 inches