Narrow-Bandwidth Television Association

i was testing my video frame sequencer first 3 pic's below are frame grabs displaying on PC and after out of my video frame sequencer to split the RGB colour signals to what will be 3 passive transformer modulators ...but in this case just the the scopes one .
My only problem here is as the video resets or on start up it cause's a random position of as to what colour frame starts first a manual reset gets it right and it will just stay playing the correct colour frame position till a reset of the video happens but i can't think how to do this automatically ,
Bit of a reboot here rethinking the whole project the syncing and framing modulation i should of worked out first so slowed me up here ,i am much happier with the anlaog idea ,i am just doing a bit on this each week see how it gos ,

I played a lot with making colour pictures from B&W sub-pictures when working on another platform. I'm wondering if you can go to what I call "interleaved chronocolour(TM)"? It makes a big difference to the perceived flicker. That is, on the first frame, consecutive lines being RGB RGB RGB and then on frame #2 them being GBR GBR GBR and then on frame #3 them being BRG BRG BRG. So on any given line, in 3 successive frames you see RGB. And on any given frame, in 3 successive lines you ALSO see RGB. It creates a rolling effect, but significantly reduces the flicker and totally enhances the perception of colour.

Andrew Davie wrote:I played a lot with making colour pictures from B&W sub-pictures when working on another platform.

Hi Andrew
i have only really done this on a PC and only of late yes its not that hard to turn a colour photo into a split 3 colour version ...bet it was harder on the earlier computer systems you mention .

I'm wondering if you can go to what I call "interleaved chronocolour(TM)"?

I have not heard of this Andrew doing a google Atari comes up on a search

It makes a big difference to the perceived flicker. That is, on the first frame, consecutive lines being RGB RGB RGB and then on frame #2 them being GBR GBR GBR and then on frame #3 them being BRG BRG BRG. So on any given line, in 3 successive frames you see RGB. And on any given frame, in 3 successive lines you ALSO see RGB. It creates a rolling effect, but significantly reduces the flicker and totally enhances the perception of colour.

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Yes i can see how that would be an improvement i suppose it is a bit like FSC but line and frame so a bit of switching i can see even with my limited know how a way of constructing it for play back any way that is interesting .
i am playing around with one of Gary's FSC systems the 400 hz 32 line version at the moment so the 3 colour frames do a bit flicker a bit ,Gary kindly made me a 1.2khz 32 line version so that one once i use it its 3 times faster less flicker .

I am at the moment trying as simple as possible just to see if i can do it ,i think it should work now once i recontruct the deflection circuits and try it again on the colour crt ,i need 3 transformers for the passive modulation for the 3 cathodes .