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CostProject NameWebsiteCC1/2CC3 RGBStatusDescription
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?CoCoVGACoCoVGAyesno
unavailable - possibly under development
FPGA daughterboard goes in 6847 socket
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$GBS-8200 v4Amazon/Ali? YUVyesavailable
without modification, requires combining H+V sync with diodes, to H-sync. Slight tearing top/bottom, normally outside useable area, overall good RGB quality. No artifact emulation.
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$GBS-8220 v5Amazon/Ali? YUVyesavailable
Same as 8200 but much less stable in some game menus while surprisingly more stable in-game.
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$GBS-Control
https://ramapcsx2.github.io/gbs-control/Wiki/
? YUVyesDIY
Accepts RGBHV direct to VGA in or using supplied cable. ESP8266 installation and programming is well documented and fairly easy. Wifi control of settings is cool, but still no artifact emulation.
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$$CoCoDV
ac8bitzone at gmail dot com
yesnoactive
FPGA daughterboard goes in 6847 socket
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$$Switcheroococoman.biz*compositeyes+artifacts*active
RGB and composite inputs - requires 3rd party SCART to HDMI converter. https://cocomanbiz.wordpress.com/suggested-scart-converters/ https://www.retrogamingcables.co.uk/SCART-TO-HDMI-CONVERTERS-TO-AVOID
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$$$RGB2VGA
https://sites.google.com/site/tandycocoloco/rgb2vga
noyes+artifactsDIY
Looks like a fun project to build, but requires an Altera Nano-DE0. Not cost effective for most.
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$$-$$$RGB2HDMI
https://github.com/hoglet67/RGBtoHDMI
yesyes+artifacts
DIY or purchase from RetroHackShack
Requires Raspberry Pi Zero, widely compatible. CoCo3 RGB requires additional ADC board, artifacts emulated. CoCo1/2 "component" supported, will require signal extraction from the 6847.
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$$-$$$OSSCeBay/Amazonyesnoavailable
Accepts Composite/S-video only, not RGB.
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$$$Retrotink 2XeBayyesnoused/nos
Overpriced due to rarity I guess. No RGB support.
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$$$$$$$$$$ Retrotink 5XeBayyesyesused/nos
Ultra-rare and way overpriced. RGB via SCART
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CoCo1/2 Resources
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The Retro Channel
https://youtu.be/rymjY1cT6DE?t=1056
yesnoDIY
I will be testing this circuit with various devices above. Need a 6847 breakout board.
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AC's 8bit Zone
https://youtu.be/tayGsz7Xs3A?t=2387
yesnoDIY
Actually the same circuit as above.
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Rocky Hill
https://youtu.be/jDvpSt9nP8E
yesnoDIY/purchase?
6847 breakout board for RGB2HDMI/GBS
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