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Hopefully I don't annoy anybody since I can't answer directly to your questions. But I have worked with/on IIfxes in the early 1990s. I always prefer original sources, which means Apple in this case. Apple's Memory Guide: https://www.macintoshrepository.org/24780-apple-memory-guide states (p...

I have to correct myself. Memory tends to make the past better then it was. For example here the refresh rate of the original Apple High-Resolution RGB Monitor and related displays at 640x480. The original specs sheet reads: Scan rates: 35.0 kilohertz horizontal, 66.7 hertz vertical Original...

I don't know about the specs of the LCs VRAM SIMMs, but I wouldn't expect that a 512k from a LC III or later would work on an LC/LCII. Back in the early 1990s I bought a specific LC 512 kB VRAM SIMM and it works, giving 256 colors/grays on 640x480 or "Thousands" on 512/560x384. The video on...

Many questions have already been answered, as an original LC owner I want - in good old usenet style - to sum up some findings and add my own experiences: 1. Mac System 6 and 7 offer system specific installations especially for the LC, taking also care for its video circuitry. You should use...

This is now decades since the last time I bought RAM for a 68k Mac, but I never bought 9-chip SIMMs, since Macs do not use the parity bit, so need only 8-chip configurations. But the reliable Jag's House website at https://www.jagshouse.com/ram_guide.html says, that the parity-chip is just...

Your demo looks very promising. Some thoughts: A monochrome variant for the original 68000 is a completely different beast than colour games for the later models. However considering the original Flight Sim ran on an Apple II a game like yours is surely doable on a 68000. The demo seems to...