This funny-looking device is a DC barrel plug to Apple IIc DIN-7 adapter, inspired by last week’s musings on constructing a battery-powered IIc. The adapter makes it possible to power an Apple IIc with a standard DC supply between 9V…
The ROM-inator II replacement flash ROM for the Mac II series and SE/30 comes pre-programmed with nifty new features for your vintage Macintosh. With the optional ROM SIMM Programmer, you can edit the ROM’s contents, altering the ROM disk or…
After 7 years of sitting quietly in storage, my BMOW 1 hand-made computer is ready for a new public appearance! I’ll be exhibiting at the Vintage Computer Festival, August 6-7 in Mountain View, California. Along with BMOW 1, I’ll also…
SIMM programmers are now available for the Mac ROM-inator II customizable Macintosh ROM SIMM. If you’ve been waiting for your opportunity to go nuts with ROM hacking, here it is! With a ROM-inator II and this SIMM programmer, you can…
I’ve got the crazy idea in my head to run an Apple IIc system completely from battery power, so I could take it on the road. I know it’s possible – there’s already one person selling a pre-made kit. That’s…
Oh man, this is good! You’re looking at the first DB-19 connector to be made in the 21st century: This is a happy story about the power of global communication and manufacturing resources in today’s world. If you’ve been reading…
Today’s electronics hobbyists are blessed with many options for custom PCB manufacturing, like Seeed, Elecrow, and OSH Park. For around $1 to $2 per board, depending on size and quantity, these vendors will turn your EAGLE or KiCad or other…
Every year I lead a group of kids in the construction of an “Electric Scribbling Machine”, as part of the local elementary school’s Discovery Day program. The program sessions are run by parents and local community members, and can be…
Many retro computers and game systems have a composite video output – the familiar round yellow plug. Unfortunately, composite video inputs are increasingly rare on modern TVs and computer monitors, creating a headache for retro enthusiasts. This is a mini-review…
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