I have only taken a quick look at it, but aren't GALs relatively simple? They have input and output pins, and the outputs change depending on the inputs? They're only complex, programmable 74HC138, as far as utility goes? That's only 256/512/1024/etc combinations to try out, isn't it?

I'm going to order some stuff from Taobao. I dont mind ordering one of the AY8930 I linked to earlier and send it to someone who needs it. Its so little amount of money that its not the biggest loss if it turns out to be something different Could you order five? I could use backups in case …

Let's wait until I trace the card and its ICs, if we're lucky maybe the GAL was only used for the digital joystick ports? After that, I already have an ISA protoboard card, what I'd need is a spare AY-3-8930.

Hello, I do still have my Covox Sound Master 1. Since I have a college degree in computer electronics, I can reverse-engineer the card myself. If I recall, the board is only 2 layers so it shouldn't be too hard to copy. edit: looking at the board near a light source, it does look like a simple 2- …