Steel and Neon—The Makings of a Sign
|Hill Top Motel, Kingman, AZ|
First, the sign maker bends the tubes, a tricky, yet artistic task as each letter must conform to the other and like letters must be bent in exactly the same shape.
To make the neon glow, an electric current must flow thorough the tube. The colors depend on the mixture of gasses inside the tube, usually neon, argon and mercury.