Year 2016

Macintosh IIsi power supply board

Identify the Mystery Components

I’m planning to do a partial capacitor replacement on the power supply of my old Macintosh IIsi computer. After 25+ years, these capacitors aren’t in the best condition, and the PSU doesn’t work correctly anymore. When plugged in, it makes…

PICkit 3 programmer

More USB-to-ADB Planning

This must be a record for the number of times I’ve posted about a project, without actually building the project, or even a half-way working prototype. I’m still fleshing out my ideas for a USB-to-ADB keyboard/mouse adapter for vintage Macintosh…

Pile of chips

Too Many ARMs!

While I’ve been working on my USB-to-ADB converter with a PIC32, I’ve received a steady barrage of feedback saying I ought to consider an ARM Cortex-M microcontroller instead. There are several reasons I haven’t done that, but one of the…

Floppy disk with a question mark

Macintosh System Boot Disks

Did you find an old Mac system in the attic, but it won’t boot up? Was your Craigslist impulse buy delivered without any software? Do you need SCSI utilities to format your hard disk, or a terminal program to connect…

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