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Author Topic: Budget S-Video/Composite-to-VGA box  (Read 5418 times)

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Offline fannypadTopic starter

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Budget S-Video/Composite-to-VGA box
« on: December 04, 2006, 01:25:15 AM »
I'm looking for a cheap, preferably sub-£30 composite/S-video to VGA box for running my A1200 through a TFT.

I'm sure this has been asked umpteen times before, but my searches only dug up references to more expensive (£60+) models, and if I'm going to spend that kind of money I might as well chip in a bit more and wait for a second hand scan doubler to show up.

Any pointers?
 

Offline fannypadTopic starter

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Re: Budget S-Video/Composite-to-VGA box
« Reply #1 on: December 04, 2006, 07:33:21 AM »
I had been thinking about doing that but had read about most cheap TV cards offering very poor quality when using the inputs.

Are there any screenshots floating about of the resultant output of an Amiga > TV card setup?

Although ideally I'd rather have a standalone box, leaving my PC free for running VSTs sequenced by the Amiga.

There must be something out there in the £30 price range...
 

Offline fannypadTopic starter

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Re: Budget S-Video/Composite-to-VGA box
« Reply #2 on: December 04, 2006, 09:26:08 AM »
I've just had a look and can't find any Aver TV Boxes for under around £70...

If you could post a link to where you've seen one for £30-40 that'd be excellent :)
 

Offline fannypadTopic starter

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Re: Budget S-Video/Composite-to-VGA box
« Reply #3 on: December 05, 2006, 05:18:38 AM »
Cheers, some direct screenshots of an actual TV card app showing the output from an Amiga would be very welcome too.

What about deinterlacing? I'm going to be using primarily Octamed which involves rapid vertical scrolling text; will I end up with a jumbled mess of lines?

Still not managed to find an Aver TV Box for under £60...
 

Offline fannypadTopic starter

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Re: Budget S-Video/Composite-to-VGA box
« Reply #4 on: December 05, 2006, 12:44:38 PM »
The RGB to S-Video converter sounds interesting, was this an off the shelf product or a DIY project?

If it's the latter, I'd love to see a guide or schematic :)
 

Offline fannypadTopic starter

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Re: Budget S-Video/Composite-to-VGA box
« Reply #5 on: December 05, 2006, 01:20:41 PM »
Thanks, that's exactly what I was looking for :)

Any idea if there's a large variation in quality between cheapo TV boxes? Are there any that deinterlace?
 

Offline fannypadTopic starter

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Re: Budget S-Video/Composite-to-VGA box
« Reply #6 on: December 05, 2006, 08:28:49 PM »
Quote

Speelgoedmannetje wrote:

But you might also opt for this, wich definately will get you the best picture quality. (RGB 15khz to 31khz for $48, though it needs a very little soldering around)


This is the best looking solution yet :)

What kind of soldering does it involve to get it working with an Amiga? I hope it's just the 23-pin connector and no extra components required...
 

Offline fannypadTopic starter

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Re: Budget S-Video/Composite-to-VGA box
« Reply #7 on: December 06, 2006, 12:06:50 AM »
Have you tried one with an Amiga or know someone that has?
 

Offline fannypadTopic starter

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Re: Budget S-Video/Composite-to-VGA box
« Reply #8 on: December 07, 2006, 11:06:39 AM »
All those extra colours will just be combinations of red, green and blue so it won't make a difference; I very much doubt there are any ADCs/DACs or complex ICs in that thing.

I'm more interested in whether the increased bandwidth due to the higher resolution of the Amiga screen modes will affect anything.