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Message: [QUOTE="Amag0k1, post: 207879, member: 330731"] From my experience, back in the 80s, 90s, early 2000s, a lot of the refresh rates where tied to power input i believe, and the tech to do anything beyond the standard came at a premium. It was stated in the material at the time that the standards where tied to input power = refresh rate. so u.k =PAL, 230 (240v) 50hz, USA = NTSC 110 (120v) @ 60hz. From what i remember (old brain not work so gud) that premium cost was the reason why it was not as popular, with it not becoming main stream i think until the discussions of speed of beat em ups in European countries vs states started to kick off. I remember this a lot back in the arcades too, as they could afford to invest in faster 60hz machines, as there ROI was higher, since it attracted players to put coins in the for privilege of the experience. I do not think we saw 60hz at home properly till the time of the Sega Saturn, as if you know how to solder, Sega had a simple dip switch method (simple resisters which changed the operations, giving a output depending on which legs of the chip where brought low or to 5v) to change between regions and speed, but the software had to be comparable with the dip switch change. [URL='https://gamesx.com/importmod/saturncon2.htm']Sega saturn ref guide i use. [/URL] (some sware by a chip as it can provide these inputs and provide better timming having an in built osilator, but that is not always the case, and can end up being more complex to mod.) Now we live in a full digital age, which much higher frequencies being possible, with some of the highest displays i have seen being at 5000hz. [/QUOTE]

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