carlostex wrote on 2025-07-05, 19:17:

Benedikt wrote on 2025-05-25, 08:49:

Does this Mindscape Music Board reproduction qualify?
The layout is reportedly still untested, though.

It certainly does, but in my opinion this needs more than a reproduction, needs also a tweak so it isn't dependant on the system bus clock. It needs its own internal oscillator to keep things real even if you put it on something faster than an IBM PC. It would be nice if one could set the card range, at least on one of the chips to the Covox Sound Master, as at least it could play stuff intended for it.

On the software side, an AIL2, AIL/32, MSS3 music driver(s) for the Mindscape Music Board would be very cool, as it has dual chips so 6 voice support.

In the meantime, I have built a card – two, actually – and can report that I have been able to come up with a near-trivial modification that gives the card its own oscillator and is completely solder-less, provided that the clock divider flip-flop is socketed.
It consists of a wire jumper bridging positions 6 and 8 of the socket and a suitable CMOS oscillator (e.g. 2.4576 MHz) that is then simply plugged in.
You can see the result here: Re: Mindscape Music Board Replica

The base address of a Mindscape Music Board can (theoretically) be configured between 000h and 3fch in increments of four.

Great job!