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Some time ago, I was working on the Super Wh-IWM Swapper (PLCC44 to DIP28 SWIM adapter) . However, due to the shortage of SWIM chips (343S-0061-A, 344S-0061-A), and the fact that even when available they were extremely expensive, the project stalled. In reality, the only practical option was to salvage SWIM chips from logic boards damaged by battery bombed and corrosion. In a way, this makes sense. The SWIM chips used from the Macintosh SE/30 through the Macintosh IIsi gener

Some time ago, I designed a small daughter card called  RAM Hijacker , a 64KB memory expansion daughter card that attaches to the Apple IIe 80COL text card   (Apple Ref:820-0066-A) . Quite a bit of time has passed since then, and I decided it was time to revisit the idea and redesign a RAM card specifically for the Apple IIe. As I mentioned in my earlier project, the 80COL text card (Apple Ref:820-0066-A), which does not have any RAM, is now largely unnecessary... I suspe

Do you remember meowTOAST, the CR2032 coin-cell adapter for 1/2AA battery sockets that my bro Stephen Arsenault originally came up with? That was back in 2021, and as far as I know, it was likely the very first battery adapter ever made specifically for Macintosh computers. Several similar adapters were released by other makers afterward, but I’m quite sure Stephen’s design was the original. Stephen’s earliest revision is archived here: https://github.com/Stephen-Arsenault/m

I’ve always enjoyed building joysticks. Over the years I’ve made joysticks for the Macintosh, joysticks for the Apple II, and even some unusual, borderline-crazy ones designed specifically for  Crazy Climber .A lot of my projects are sold as kits, because I want enthusiasts to experience the excitement of assembling something with their own hands and then using it to control a real vintage Apple computer. When it came to joysticks, I kept thinking:  Wouldn’t it be great if pe

I’ve been hammering away at the Resources page on my site, trying to drag dusty memories out of the crypt. Most of the compact Macs are...

What started out as just a little side hobby has now become a huge part of my life— Kero’s Mac Mods . I never imagined it would grow this...