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I wish we had a schematic of the CC Analog board! But that doesn't exist outside Apple's internal archives. (You'd think will all the leaking that goes on, someone would have leaked those schematics by now!) The web info on the Stereo Mod says to put the same capacitor on the CS5 pads as is...

Absolutely amazing work, Zane. Your ability to design amazing gizmos like this blows my mind! 🤯

@Kay K.M.Mods and several other people who have installed Bolle's clone of the Carrera040 have discovered that there are audio glitches on the SE/30, but apparently not on other Macs like the IIci, when the 040 on the accelerator is being used. I guess it must be a similar problem to what you...

Yowza, Zane! 25MHz 68000 with full compatibility with older software (whatever runs on a normal SE), plus the ability to use a Fast ROM too, all in a super compact size. Without going through all the previous posts, what is the estimated ballpark price?

Where FTP stands for Forced Perfect Termination, using diode clamps. I wanted to explain that because I often need help with acronyms! 😅 In my first video on MacSD, I mention the 3 Termination methods not only because MacSD offers all three but because there are cases when one would work but...

My friend, Kay Koba, posted a link to this insanely great video today on FaceBook, and after watching it this evening, I had to repost the link here on TD... https://www3.nhk.or.jp/nhkworld/en/ondemand/video/3004698/?autoplay It will be available for watching until September this year. A very...

Wow. When did you work at Apple, and in what capacity, Alf?

https://www.ebay.com/itm/234362651432 o_O

If everyone outside Japan stopped buying on Buyee, Yahoo Auction prices might be lower! But thank you, Kay, for all your help. You kindly gave me the advice to buy that 575 & 630. I really appreciate it! You also gave me a lot of advice on the Stereo mod, and I am looking forward to doing...

I'm big on performance when it comes to SCSI to SD solutions, and MacSD is really quite incredible when it comes to that. Plus you get all the other great features too, which is amazing. After my SE Reloaded video series concludes, I intend to revisit MacSD (and the new firmware) and also add...

I bought a fully functional L575 (entire computer, with keyboard, mouse and a few CDs) with shipping to my address in Japan on Yahoo Auctions Japan for a total of 9250 Yen in Oct. 2021. Then in Nov. 2021, I purchased a Performa 630, with shipping, for 3960 Yen. (Kay Koba kindly spotted those...

@Kai Robinson You cited 5 acronyms and said they are consolidated into the BBU (Bob Baily Unit). What do each of those 5 acronyms stand for? BMU, ASG, TSM, TSG, LAG I want to know more, but I'm not afraid to ask. :geek:

Here's a Buyee link of the same Yahoo Auction I referenced in my previous post... https://buyee.jp/item/yahoo/auction/u1052451048

While looking at that Yahoo Auction page, I scrolled down and spotted an LC575 machine complete with Ethernet card. These aren't grail/rare at all on Yahoo Auctions Japan, but many Color Classic owners THINK they are rare and therefore stick with their painfully slow stock 16MHz 030 board...

@alxlab Thank you for the details. Very interesting that the 200pF capacitance value isn't critically important, as per their use of a rather horrible Z5U dielectric. Since the Bourns datasheet specifies ±30% tolerance, that would mean whoever wants an assembled PCB using your design...

@alxlab Thank you for confirming the importance of the 1mm board thickness. What I've found in a lot of Github projects is that board thickness isn't always specified, but it can be an important consideration for many applications. Who chooses the capacitor dielectric? The BOM doesn't...

@yock1960 You have no stability issues at all running OS 8.1? No random freezes or anything at 49MHz?

Got a battery bombed SE? Want to have fun assembling a brand new Mac motherboard from scratch? Kai Robinson reverse-engineered the solution. My Part I video shows you how to get started.

And here it is, folks!

What should the PCB thickness be when ordering? 1.6mm? I added the ZIP file of Gerbers into PCBWay and it yields this odd preview: Panel options are these: or