I have a /275 and a TAM, though the 275 has a Twin Turbo card for video and the TAM doesn't have any cards installed (just CSII Ethernet), so I guess it will be worth observing them to see.
Realistically I don't think they could leave many lines off. The Tulip in the CSII Ethernet card is an off-the-shelf part and it would likely have made it more expensive to synthesize any missing signals, which would have defeated the purpose.
As an owner of a Stern Sopranos and Williams ST:TNG, I haven't been happy with many pinball simulations. I like The Pinball Arcade, but that's obviously very new. If I were to pick for classic Mac, though, it would be the Pro Pinball series, especially Fantastic Journey. It has the best physics...
Excellent work, especially since I'm out of CSII Ethernet cards between my TAM and 6500.
That said, I don't recall them being speed demons on either system. It did seem a little sprightlier in BeOS.
Theoretically the message in a system error dialogue can be modified by altering the system error alert table. See Inside Macintosh's System Error Handler. It's possible something had altered it or stomped on that block of memory.
I use Crypto Ancienne, but then, I wrote it. Note that the browser needs to support it (or at least be tricked into supporting it, since HTTPS over HTTP is inherently insecure - see documentation for details).
https://github.com/classilla/cryanc
There's error sounds and there's error sounds. One is synthesized by the computer (bad RAM) and one is emitted as a physical consequence of hardware failure (click of death), so one would be a perfect recreation but the second would require recording.
Can you be more specific about the angle you want?
I'm in the US with a TAM, but I may not be able to do this for a bit, since I have a family issue to deal with first.
Most of the PowerBooks of that generation use the same connector on a 45W supply. I use a Wally G3 power supply with my blueberryBook, but a later snow iBook or iBook G4 supply should also work. For that matter, I use a 45W supply with the same connector for my 1400.