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@frontein1 I just noticed that your opening post here and your post on the MLA makes no specific mention of the LC575, and while that is probably included in the "LC475/Q605-type Macs" phasing, it might be good to edit-in all the compatible Mac models for clarity. The reason I suggest that is...

I'm done filming my video about the 84v mod (13“ High Resolution mod) conversion and will spend the weekend editing. For now, I can say that only some components get hotter than with the standard 68.4V VGA Mod, and those are the components we upgraded to beefier versions in this thread. The...

Nice video overview. The narration adds something very nice to it. 👏 One interesting thing I spotted in that video was the Welcome To Maintosh splash screen from 1983 that talks about System file version 4.2! The Public version of System file 4.2 was released in October 1987 and obviously...

Folks, This Universal ROM SIMM will kill the RAM checking at cold boot, which can save you a lot of time if you have something larger than a 32MB SIMM installed in an LC575 board (which in my case is a Color Classic MYSTIC. I simply soldered a ROM socket onto the motherboard pads. No drilling...

David, thanks for the detailed explanation! We know that if you pull the PRAM battery, not only will the Date/Time be wrong, but your Mouse defaults to painfully slow tracking (perhaps the most excruciating thing about a missing PRAM battery), and various General Control Panel settings get...

So basically it transforms an a modern computer into a TechStep substitute, which is groundbreaking because it would meaning it would be accessible to everything and not just the wealthy. Real TechStep devices are much to expensive and even the recreation isn't cheap. A software solution...

Wow. Pretty amazing, although it does appear to be created for programmer types. So, is this new software a more polished version of the TechStep protocol that Adrian shows in his video at 20:29?

Wow. Very interesting looking device. At first glance I thought it was some kind of medical contraption. 😅 What does this button do?

500MHz! :-) I've actually never used a 500MHz scope outside my engineering school days. Even the scopes at the office are all 100MHz, as is my hacked Rigol. (In the stock state, my Rigol was only 70MHz.) Quite nice you got such a great bandwidth scope and a fine price point. You spotted...

It is a very important topic, and as such, I would encourage you to post in the forum more because you are helping us to think about these matters. What's interesting is that some people working the problem say things like: "I am not sure that anybody will use HFS/HFS+ after 2040." Which of...

I'm one of those exceedingly (over-the-top?) meticulous people who spend a couple weeks reading every review and watching every YouTube video I can find on something before I buy it. Reading the technical documentation for a technical product is also a must. But I do that mostly when buying...

Good thermal cameras (what they call high-resolution types) are rather pricey, which is why excessively frugal penny-pinchers like me tend to hold out for what seems to be like an eternity before buying such gizmos. The same was true of my Hakko FR-301 desoldering gun. I held off for YEARS...

If you have a thermal camera, you could leave it running with the top case on for about 1 hour, then pull it off and quickly measure the temps on your cards. You could repeat with that test with fan add-on. And if it is easy to flip the fan, you could do a third test. Those 3 temp...

Wow! What a nice idea! Pretty nice how ChatGPT was able to create something usable for you. I too am not adept at 3D design, so having a digital friend who can assist with that is handy! Noctua fans blow out the sticker side though... And because your main PSU fan also blows outward, are...

Hmmm... You have a different capacitor part number than I do. Mine is blue and shaped slightly differently (with no crack, of course)... Because you confirmed your machine working, that indicates the plastic housing of your capacitor cracked, but nothing inside was affected. Even so, if...

Not a lot, I suspect. A brilliant 68K programmer simply has to “Tinker Different.“ :-)

@Paolo B So you’re saying that when you heard the pop and saw the CRT discoloration problem, you had the rear case removed? The reason I ask is because how the very back and bottom of the machine (the metal shield) sits on your desk is crucial because that can impact the small, curved pieces...

Sometimes posting photos helps to attract much needed attention to a thread, so here are some very high resolution photos of the top and bottom of my Analog Board, as well as zoom shots of the 68.4V VGA Mod (Sense Lines & Horizontal Deflection Voltage areas). You'll also see I have the stereo...

@Paolo B , because you said you won’t have the ability to test for a few more weeks, I’m going to write a few words below that take this thread back to the question I asked in my opening post because I’d like to get some thoughts from other CC owners. I’m in the middle of filming a video about...

Wow! The fact you desoldered that entire connector is incredible! I really must go to work now, but I just wanted to post a little extra for you, so you have something to ponder. The book Doping Mac, which @Kay K.M.Mods sells and recommended to me, shows that when doing the 84V 13" Hi-Rez Mod...