Date   : Sun, 10 Dec 2006 10:51:39 +0000
From   : astravan@... (Alex Taylor)
Subject: Chroma on BBC B

BRAHMS wrote:
> A couple of questions about the chroma (on video out) for the BBC B
>  
> 1) Is it possible to "improve"/adjust this easily - when enabled it 
> seems to break through quite badly (into the video) on a couple of the 
> beebs I have here. I'm guessing this is because either its not modulated 
> at the right frequency or the sidebands are not filtered out very well? 
> (sorry a little knowledge may prove dangerous here).
>  
> 2) On some machines it drops in and out (on one removing the lid and 
> allowing air in improved matters)
> This one particularly annoying as it happened during testing my new game 
> just as I was about to beat my girlfriends hi-score, I still managed but 
> only just, not easy when one has to remove the screws and lid whilst 
> still playing!!!

If someone has an answer to this, I'd love to hear it too. There's a 
picture on my blog from when I connected a Beeb to an LCD projector and 
played Chuckie Egg with an 8' high picture :-)

However the colour started to flicker after 10 minutes, the projector 
didn't like this and the picture started breaking up, eventually going 
blank. I didn't bother putting the Beeb back to monochrome composite 
video, because I wanted colour!

I had to try a few to get this far, some of them wouldn't do this at all 
in colour, and it seems the rest started to fail once they'd warmed up.

-- 
Alex Taylor