Macintosh IIsi missing monitor

[PC-XT]

I have a Macintosh IIsi, as part of my ancient collection, and it has no monitor. I have another monitor, an Apple Multiple Scan 15 Display from 1995, but it doesn't seem to work on the IIsi. It works on a Performa 6300CD, but maybe Apple changed the monitor type when it changed processors? (The IIsi uses a Motorola CPU, while the Performa uses a PowerPC.) My question is, if there is any adapter or anything, or some modification that would let me see what's going on. I have IBM-compatible monitors of all ages, also, and I think there used to be adapters for them, but I'm not sure which Macs they were for, since I didn't even know there were differences among them. I sometimes work on computers with the monitor off for fun, but I don't even know what System this one has. If there is no way of putting a monitor on it, maybe I could network it? That might be simpler than fooling with adapters? Anyone have ideas? Thx4reading...