Time to Make an Innovation (Score 1)

I think it may be time to give up trying to find an Innovation and simply have an ISA card made that functions like an Innovation would. You would need a MOS 6582 SID (all reports state that it is the 9v 6582, not the 12v 6581 that is on the card), an 8-bit ISA prototype board, an RCA jack, some TTL logic for address decoding and signal translation and passive components. I wouldn't bother with the gameport jack. Fortunately, the Innovation was not innovative at all when it came to interfacing with the PCs I/O bus. The SID has 32 registers and the Innovation takes up 32 I/O ports beginning at addresses 260h, 280h, 2A0h or 2C0h (jumper selectable.) This has been confirmed in DOSBox. It should use the same clock frequency as an NTSC C64, 1.02MHz, which can easily be obtained on the ISA bus. If money is little object, then you should find someone skilled with ISA prototypes and have him make your Innovation.