| Mechanical Television Color Scanner using Bell Labs Mirror Screw(click on picture for high resolution image) This is a replica mirror screw receiver made using the Bell Labs screws. Here is information on how it was made. | 
|  | 
| Mechanical Television Color Scanner using Bell Labs Mirror Screw(click on picture for high resolution image) This is a replica mirror screw receiver made using the Bell Labs screws. Here is information on how it was made. |