New York , NY
Cathode Ray Tubes
Photograph - Photograph
Two cathode ray tubes, in which there are three platinum wires fused into small glass heads. These three wires supply positive electricity while a fourth, negative, wire carries a cathode in the form of a concave mirror (a).
March 6th, 2013
Viewed 10 Times - Last Visitor from New York, NY on 08/18/2015 at 11:01 PM