Inside a glass bubble, launch and sharpen a trio of electron beams across a vacuum,  align them to  within thousandths of an inch and synchronize them with twin beams thousands of miles away.  Three beams, each with brightness controlled four million times per second, and precisely scanning sixteen thousand lines each second.

This was done fifty years ago without computers or transistors or IC’s or microprocessors, and produced in the hundreds of thousands in the 1960’s.  Every wire was placed, every junction soldered, by hand in the United States.  The CT100 was one popular color television that did just this, and the Sams Photofact file is a complete guide for the maintenance and repair of the set.  With complete schematics, parts lists, troubleshooting and alignment instructions, it is even possible to build a new working TV from these drawings, if the parts can be found.