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GreenAntz RGB to component transcoder

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apoketo:

Definitely need to upgrade from pal s-video to one of these, but will a boxed version be coming any time soon?

Zebidee:

Eventually I'd like to make a box, but not a priority. Will make another small batch soon though.

Zebidee:

GreenAntz v1.9 is out!


I've recently made multiple significant improvements to the GreenAntz design, including:

1) boosted signal levels and greater accuracy
2) crispier, "faster" (transition/skew rates), sharper image
3) brighter, clearer and more consistent colours (more apparent in games with large areas of a single colour)
4) reverse-polarity protection for external power connection
5) cleaner design





GreenAntz is up to version 1.9 now, and will likely my last revision, at least for this retro-styled through-hole design. I think I've squeezed the last drops of good stuff out with this.

The latest v1.9 PCBs (black) have only just arrived, so haven't been able to assemble any yet.

However, I've already built a "limited edition" batch of the GreenAntz v1.9 design onto these racecar-red v1.8 PCBs. They look hot, if a little Christmassy, and red must be faster right? There are minor "cosmetic" differences. Two (unused) holes are somehow misaligned by a fraction of a millimeter. Some components are different to PCB markings. Otherwise exactly the same as v1.9.

The newer GreenAntz v1.9 PCBs are plain black. So order now if you want red.




These are all VGA units but a SCART version is also available.


In other news:


To go with the improved picture output, I've added (re-instated) a switch to optionally activate a sixth-order "Butterworth" 9.5Mhz low-pass filter built into the main amplifier IC. This tidies/smooths the signal and passes SDTV very nicely, but you may lose a whiff of sharpness and comes with an ~800 nanoseconds delay (<1 microsecond, barely noticeable even to most people who worry a lot about latency). Choose your own adventure. If you want to see what 800ns delay looks like on a video signal, switch this off/on and see the picture shift right by up to 1-2mm (depends on screen size).

Contact me if you want to order. For people who have expressed interest recently, i will try to follow-up. I miss you for some reason, please contact me directly anyway.

Will post some more stuff soon about improvements, picture quality and comparisons.






bobbyb13:

Well now!

Hadn't thought that the version I had could be improved upon really.

Cool to see that you're still at it with this project Andrew.

Zebidee:


--- Quote from: bobbyb13 on February 06, 2024, 01:23:51 pm ---Hadn't thought that the version I had could be improved upon really.

--- End quote ---


Hmm, how about I send you a free one to compare, discuss, review?

If they are red, surely they go faster...  :dunno

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