Recent content by dv-

thanks!

I know the internal video signals of the Mac Plus and other B&W compacts are... weird. I've looked into the RGBtoHDMI, and I know that's an option, but I'd honestly kind of like a more "period appropriate" analog output. Did anybody ever design a circuit that can convert the internal signaling...

Case is in "public beta" I guess. https://www.thingiverse.com/thing:7257191/files

They have a variety of uses. I originally bought mine to find gaps and holes in my foundation where cold air was seeping in.

Resin key caps (at least using the resin I had on hand) ended up being kind of brittle, although they LOOKED great. Printing in PLA w/ ultra-high quality settings instead. It's fine, and the stems don't explode when you try to push them onto a switch. Option/Command and Delete keys were easy...

It was a pull I got on eBay. I’ve been reading and I think I can hack together a replacement chip with a Pi2040. I think. I’ll definitely post here if I figure that out, even in part - I’m not a great programmer, but if I get stuck maybe somebody else can bring it over the finish line...

I think my New Year’s resolution may be trying to reverse engineering the controller chip.

Started with a busted M0110A. Replaced the controller chip. (Socketed the replacement.) Hard wired a replacement cable. Cherry Blues plus Kailh style switch sockets and short wires. Now I just have a top case to remodel and a bunch of 3D printer work to do. It works though!

Anybody have (or know where I can get) wiring diagrams for a Mac Plus Extended keyboard? I have one that's just a doorstop; other keyboards work fine with the same Plus / cable, but this one does nothing. I'm specifically curious about how to test that big microcontroller. (Would I need, like...

I have a Dell 2001FP (1600x1200 max resolution, VGA input) that I've had a lot of luck using with old Macs - it's worked great with everything from a IIsi to a modern MacBook Pro. But it's pretty dim and yellowish. I guess the fluorescent backlight degrades over time? Most older monitors I've...

Got a 6360 and ported over some parts I had from a 6400 motherboard. Was curious about this 60 pin connector (see attached pic) on the AV capture card - anybody know what it does? (I’m guessing it’s for the TV tuner?) Also, I have a Netgear FA311 PCI Ethernet card, which came out of the same...

Has the memory soldered onto the main board been removed or replaced? If it goes bad it can cause issues - it’s used for VRAM, iirc. I think you can just remove it completely and just use what’s in the slots instead. But check me on that.

This is actually pretty doable but if you can find a “broken” Plus keyboard and steal the circuitry, it’s easier. The main issue is that new switches and stuff don’t all line up perfectly with the holes on the board, so you end up needing some bits and pieces. I bought a broken keyboard a...

I ended up narrowing that down to a defective termination on the old HDD I was trying to use. Other devices work fine, as long as that drive wasn’t part of the system. The information about the VIA1/2 chips is interesting though; I’ll definitely be filing that away if I have further issues. 😎

I was able to use mine with an ImageWriter II, but never tried it with a MIDI device. I ended up buying two - the first one came defective. Fortunately they’re not rare or expensive.