Shameless plug, things are looking good for a 2019 release of
https://irkenlabs.com/retro-scaler-a1/introduction
It blows the Taito scaler out of the water quality wise, IMHO - did A/B testing with it.
@invzim
What resolution does that output at ? What kind of input are on it? What are the two connectors in the middle for? What's the SD card connector for ? Price point? .. yep im intrigued
Input is either Arcade or console RGB, and arcade/computer sync or console sync - all via the HD15 connector. SD card is for firmware update and likely settings. Connectors in the middle are just development connectors, they will not be on the shipped product which looks a bit more like this:
https://irkenlabs.com/32-new-upscaler-prototype
I'm up to rev 1.5 now, which will hopefully be the last
Vertical resolution is line doubled, so 240 lines becomes 480 lines. Compared to the OSSC the differences is it's a 4 layer PCB (OSSC is 2 layer), different ADC, analog output instead of HDMI, dedicated sync processing circuitry outside the ADC, and a dedicated ARM cpu to handle house-keeping without eating FPGA resources.
Design goal was to make something like the xrgb2, but readily available. I'm pretty pleased with the image quality, which is (again in my opinion) far superior to the xrgb2.
Price point is not set, as I don't have the assembly quotes in yet - it will be more expensive than the OSSC (parts cost is higher & lower volume) - but hopefully still good value.
Kind of hard to take snaps, but did this earlier:
https://www.youtube.com/watch?v=_ODdy0zBgvM
What to look for is 'stable pixels'