For what it's worth, if you don't have the chip that powers this card, there's also the PicoGUS which is a multi-function, software-defined ISA card that includes the ability to emulate the Gravis Ultrasound among other sound cards: https://picogus.com/
” Note: I have not generated the fab package since I have not actually fabricated the board and tested it for functionality. Build this board at your own risk.”
You mean: ”I just asked Fable to one shot this and have no idea if it actually works”?
You mean: ”I just asked Fable to one shot this and have no idea if it actually works”?