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That's component U4D on the Mac SE motherboard. I've been using the SN75150P on my BOM and Mouser Cart, and currently it's not EOL'd by Mouser yet. The TI product page also shows it as "Active."

Very interesting. I merely read the opening post where Kai said "any Reloaded boards" and just assumed that word "any" included his SE Reloaded board too. But per your request, after searching my BOM like mad, I do not see any reference to UC12 and UB12 or the SN75175 part number. So it would...

Thanks for the heads-up, @Kai Robinson . I made an announcement on my YouTube channel via Community Post just now, linking back to this thread. Those of you interested in browsing the parts list for Kai's SE Reloaded build, note that my BOM is here...

Interestingly, I am not able to see your signature when viewing this page in Safari on my iPhone 15 Pro Max, as you can see from this iPhone screenshot... But I am now using Safari on my 5K iMac, running macOS Monterey, and I can see your signature now. I consider that to be a forum...

Yes, screen adjustment every time you switch resolutions would fast become painful. But I do see merit in having the stock resolution because everything becomes a bit easier to see. VGA makes everything shrink down pretty small.

What I show below is not irreversible. I would never reverse it, but I am mulling a change to the high voltage VGA mod so I can test the stock CC motherboard and LC520 motherboard. VGA mod for the Macintosh Color Classic (640x480) & Doping Mac

In my application, I already had the heatsink affixed with ONLY 2-sided thermal tape (prior to using the clip). When using thermal paste, I’d like to say that I’m a big fan of MX-4 because it lasts for 8 years.

900 nits is pretty amazing, wow.

Which is really interesting because I've heard it's not an IPS display. Anyway, thank you for the feedback!

@Paolo B You earlier said you have 3 of these machines. Did you do the VGA mod on any of them? If so, was there a change in the color cast, before/after the VGA mod? I wouldn't think there would be, but I'm curious nonetheless.

These strips... I've never tried moving them with the machine on, but I suspect something will check on the screen when you do touch them. Just be careful you don't zap yourself if you do decide to touch them because the coil is nearby. Rubber gloves would be safe though.

As mentioned in my Synchr030/S review video at 8:55, you only need to solder on the ECS Tap daughtercard if you have NO PLANS to install an accelerator. You can install it and then just NOT connect the little wire leading from it to your Synchr030/S PDS card, if you have an accelerator, but...

But is it really the CRT which degrades, or rather degradation of PART of the degaussing coil surrounding the back of the CRT, and/or the magnets in the vicinity of the aforementioned discoloration? Or would it possibly pertain the the Yoke board or its connectivity to the CRT neck?

Forum member @jmacz and I have been exchanging PMs for a couple months, and he recently very graciously mailed me a few prints made with PAHT-CF — a carbon fiber enhanced filament. He offers 10mm & 11mm height versions of the clip on his Printables page here...

I'm back from my trip. After searching far and wide, I simply could not find any schematics or technical whitepapers on the topic of these 1.44MB SuperDrives. That's not to say such information doesn't exist. It's only to say that I myself could not find it. Hopefully, someone better adept...

I have updated the Mouser Cart. But keep in mind that I have the following important note displayed directly under that Mouser Cart URL in my video description... ⚠️ Before you buy this cart, check your 1.44MB drive's capacitance values so you can confirm your drive is the same as my 1.44MB...

So the noise you saw was similar or the same as the noise I demonstrated in my video? The reason I ask is because I’m curious if anyone else experience the same kind of noise prior to adding the capacitor I showed in my video. While there is nothing inherently wrong with the Baby Face power...

I’m traveling internationally at the moment and cannot provide you the perfect answer at this time. I can only say that Japanese web page does not include any engineering reference specification and instead covers disassembly, cleaning, lubrication, head related topics, and testing, with various...

Actually, devices will keep working… until they don’t. :-) Or until you start getting unexplainable quirks. As stated previously, aging caps slowly age and their transformation into a resistor of sorts is not readily apparent, especially when you have multiple bypass capacitors in a circuit...

Gerry, that’s incorrect. No fluid filled capacitors have eternal life. The gaskets where the legs come out breakdown overtime, and the fluid either leaks out or evaporates, slowly turning them into a resistor. That truth has nothing to do with capacitor plague in the early 2000s. There’s...