Uploaded July 2026 | Updated September 2026, 2 weeks ago
A while ago, I bought a Mac Plus on Mercari, and it was lucky that it didn't sustain CRT damage in transit - that's what happens when the seller yeets the carrying bag in a box... but instead of returning it (which certainly would have destroyed it), I bought a replacement case for it that @DavesVintageApplTech restored. Before he returned it, he asked if he could put a "Ready for PowerPC Upgrade" sticker on it.
Bad news: no one ever made a PowerPC accelerator for the Mac Plus. Good news: 68030-based accelerators were available, and modern clones of those accelerators exist at reasonable pricing.
So I've bought a MiniPerformer+ : JCM Edition accelerator for my Mac Plus, and a 68030 processor from eBay (because Joe didn't have stock of them at the time of my order). I guess we better get testing...
Tonight we will continue where we left off on Tuesday: We finally have the MiniPerformer+ installed in the Mac Plus, and the FPU works at CPU speed.We need to pick an oscillator for the FPU and do a fresh Mac OS install.
Will the "40MHz" 68882 run at 40MHz? Will the fresh Mac OS install make the system more performant? Will we finally wear out another microSD card? You'll have to watch to find out!
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... or simply do the YouTube things: Like/Dislike, Comment, Subscribe, Enable Notifications, and participate in the Chat. These things help the channel, too!
**
Read Computerized Start™, my Official Blog: jdmcs.net/myblog
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A while ago, I bought a Mac Plus on Mercari, and it was lucky that it didn't sustain CRT damage in transit - that's what happens when the seller yeets the carrying bag in a box... but instead of returning it (which certainly would have destroyed it), I bought a replacement case for it that @DavesVintageApplTech restored. Before he returned it, he asked if he could put a "Ready for PowerPC Upgrade" sticker on it.
Bad news: no one ever made a PowerPC accelerator for the Mac Plus. Good news: 68030-based accelerators were available, and modern clones of those accelerators exist at reasonable pricing.
So I've bought a MiniPerformer+ : JCM Edition accelerator for my Mac Plus, and a 68030 processor from eBay (because Joe didn't have stock of them at the time of my order). I guess we better get testing...
Tonight we will continue where we left off on Tuesday: We finally have the MiniPerformer+ installed in the Mac Plus, and the FPU works at CPU speed.We need to pick an oscillator for the FPU and do a fresh Mac OS install.
Will the "40MHz" 68882 run at 40MHz? Will the fresh Mac OS install make the system more performant? Will we finally wear out another microSD card? You'll have to watch to find out!
*
Ways to Support the Channel:
☕️ Tips or Support via Ko-fi: ko-fi.com/jdmcs
🈷️ Support me on Patreon: patreon.com/jdmcs
📦 Amazon Wishlist: jdmcs.net/wishlist
... or simply do the YouTube things: Like/Dislike, Comment, Subscribe, Enable Notifications, and participate in the Chat. These things help the channel, too!
**
Read Computerized Start™, my Official Blog: jdmcs.net/myblog
Follow me on Instagram: jdmcs.net/myinstagram
Follow me on Twitter: jdmcs.net/mytwitter
![COMPUTER Repair: My MCA Apple ][+ Clone Needs a Power Supply & 3 Sockets! (Computerized Start™ Live)](https://i.ytimg.com/vi/Q80ly9p4EhY/mqdefault.jpg "COMPUTER Repair: My MCA Apple ][+ Clone Needs a Power Supply & 3 Sockets! (Computerized Start™ Live)
Back in September, I got COMPUTER, my Apple ][+ clone from MCA of Japan, powering up to the BASIC prompt. To do so, however, I had to disconnect the keyboard and use another Apples power supply. I think I have what I need to solve both problems.
The power supply was easy: just buy another power supply on eBay (the place where I buy the things I later regret™). I have a cap kit on-hand, thanks to the magic of buying the wrong kit for another project, so well go ahead and recap it.
The keyboard might be even easier: I should have used sockets without a lip for the three sockets that have cables installed into them: the keyboard, the joystick/paddle port, and the memory chip at E3. I purchased some sockets that should fit the cables that go into these sockets, allowing the cables to make and maintain good contact.
Will I get the power supply re-capped without drama? Will I swap the correct three sockets? Will COMPUTER still boot? Youll have to watch to find out!
*
Use discount code JUSTINTIME for for 5% off all Computerized Start™ merchandise at https://shop.jdmcs.com.
*
Ways to Support the Channel:
☕️ Tips or Support via Ko-fi: https://ko-fi.com/jdmcs
🈷️ Support me on Patreon: https://www.patreon.com/jdmcs
📦 Amazon Wishlist: https://jdmcs.net/wishlist
... or simply do the YouTube things: Like/Dislike, Comment, Subscribe, Enable Notifications, and participate in the Chat. These things help the channel, too!
**
Read Computerized Start™, my Official Blog: https://jdmcs.net/myblog
Follow me on Instagram: https://jdmcs.net/myinstagram
Follow me on Twitter: https://jdmcs.net/mytwitter")
![Its COMPUTER Week: More Sockets, More Mooing for My MCA Apple ][+ Clone (Computerized Start™ Live)](https://i.ytimg.com/vi/QeiCKQ_OVgQ/mqdefault.jpg "Its COMPUTER Week: More Sockets, More Mooing for My MCA Apple ][+ Clone (Computerized Start™ Live)
This description will be updated after Tuesdays stream...
*
Use discount code JUSTINTIME for for 5% off all Computerized Start™ merchandise at https://shop.jdmcs.com.
*
Ways to Support the Channel:
☕️ Tips or Support via Ko-fi: https://ko-fi.com/jdmcs
🈷️ Support me on Patreon: https://www.patreon.com/jdmcs
📦 Amazon Wishlist: https://jdmcs.net/wishlist
... or simply do the YouTube things: Like/Dislike, Comment, Subscribe, Enable Notifications, and participate in the Chat. These things help the channel, too!
**
Read Computerized Start™, my Official Blog: https://jdmcs.net/myblog
Follow me on Instagram: https://jdmcs.net/myinstagram
Follow me on Twitter: https://jdmcs.net/mytwitter")
