Was there never a VGA adapter for the Apple II or the IIGS that would convert the RGB signal to VGA and provide scan-doubling support? I have noticed that there are one or two VGA adapter cards available but requires you to find a VGA display that will will sync down to 15 Khz.
I'm looking for a display adapter along the lines of the Microway FlickerFixer's that were available for the Amiga computers with a video expansion slot. The Microway FlickerFixer would convert the Amiga's RGB signal to VGA but also provide scan-doubling support at 30 Khz. This allowed you to use just about any off the shelf VGA monitor.
I have just restored a nice Apple IIGS and I'm now looking to use a VGA display.
Edited by Sky7, Tue Aug 22, 2017 8:02 PM.