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In 2006, we decided we needed a cross in the display. After all we may be celebrating the birth of Jesus, but it was His death and resurrection that is really the important thing!
Our 2006 computer channel layout just happened to have four 'extra' channels available, so we decided to allocate all of them to the new cross. The cross is wired up with 150 clear mini lights in three different circuits, every third bulb on the same circuit. This allows some interesting 'chasing' effects to be done with the computer control. For the fourth channel, we decided to use a string of bright blue LED lights. They complement the clear bulbs, and add a completely different look to the cross (and in a way, our display, since we don't use many LED's yet). Once we got it wired up and ran some tests, we were extremely pleased with the look.
For the actual construction of the cross, I have to thank Dave, a friend I met on the PlanetChristmas.com forums. I designed the cross, purchased the metal rod, and cut the pieces to size. Dave took the pieces and my diagram, and welded it up for me, and did an excellent job. Once that was completed, I sprayed it black and attached the lights as described above with wireframe lighting clips.
The cross helps add a little more religious flavor to the "Toyland" section of our display. We often will also pull the cross back out of storage around Easter time, displaying it with the blue lights lit in the days leading to Easter, and then with all the white lights lit on Easter Sunday.