There’s a new device for the SNES available that plugs directly into the multi-out and offers an RGBHV output via a DSUB connector. I’m careful to not use the word VGA though, as it’s still a 15Khz RGB signal and no 480p/VGA conversion is done. There seems to be an LM1881 “sync stripper” inside, but I’m still a bit confused as to it’s use. According to the creator:
The output is RGBHV with csync acting as hsync. I have a ‘true’ hsync implementation but it’s a more expensive design that isn’t required as it appears every monitor/doubler is okay with csync as hsync.
That can be interpreted a few ways and if the device is simply outputting csync on the hsync pin, a much better solution would be to add a TTL/csync jumper and just get sync directly from the console. If an RGBHV conversion is being done, than a sync chip is definitely required.
My only other concern is how much pressure is being put on the multi-out port. For a design like this, I’d much prefer having “feet” to support the downward-pressure of the VGA cable. With a thin cable, it might not be an issue though.
It still seems like a handy device and while it fills a small niche, it’s still a device that would be a help to many SNES owners with custom setups…especially people with Extron Crosspoints or VGA switches. I’ll see if I can get one in for testing and see how it works: https://chipnetics.com/projects/hw/syncbaby/