Prototype set is here

[tubesrule]

Originally Posted by Penthode

Note that CPA was NTSC!

I guess I only consider CBS and today's analog color standard as NTSC since those were the ones ratified. CPA, dot sequential and the rest were only lab exercises or presentations to the NTSC.

I am envisioning an issue with CPA and compatibility with the SCRF converters. Since these converters don't have frame memories they can't do frame rate conversion. This means the line and frame timing will match modern standards so there will not be a exact relationship between the line timing and sub-carrier frequency. We would need to either shift the sub-carrier frequency slightly, or accept a non-integer relationship. Not sure if the later would be a problem as I have not seen how the set determines which field phase it's in. The more expensive WC converter can do whatever we need but is overkill.

Darryl