Pye experimental colour camera c.1954

This shows the simple system with the rotating coloured disks. There were a number of drawbacks with this system, incompatibility with the existing monochrome standard and coloured edges to moving objects to name just two. On the plus side it was simpler and cheaper using just one camera tube.

 

As the field frequency would have been 150cps* the system bandwidth would, simplistically, have been three times that for a monochrome system at 50cps field rate.

A 90 volt synchronous motor was used to drive the filter wheel.

 

* As this is a 1950's camera cps. would have been used, cycles per second or Hz. today.