Recent content by aeberbach

I think there was probably some other circuitry to attach to that board to provide video output to some other device. The logic chip there is probably being used as a buffer to drive those lines without affecting internal video. Compact mac video is hsync, vsync and 1-bit pixel data - no monitor...

If you have the analog pins are all wired up (four pins in a square above and below the horizontal terminal) you should be fine to convert to VGA. But are they connected on the card? It is very likely they are, but even a card that has no contacts behind the holes will have physical holes for...

I also always lever up with a screwdriver inserted under the chip. The official chip remover looked like a tiny rake, intended for inserting under the PGA and levering upwards, so if I can't get one of those the screwdriver, carefully applied, is probably the next best thing. Beware the cheap...

Hi - getting a Platinum is very near the top of my list. Some kind of trade could definitely be done, did you want an Atari 400? I have a Mac-Con pass-through PDS ethernet card for SE30. Sony VAIOs, PCG21212W (small, cute, white) and PCG-8M1P (Pentium 4, huge). Ans money of course!

Depending on where you live a nearby metal shop may be able to bead blast and then galvanize it for you?

You can buy NuBus connectors - DIN 41612 is what they go by on electronics distributors like Digikey and they are usually in stock, still in use in many systems.

What a great update! Thanks!

Nice job!

I originally bought a 3D printer to solve the problem of positioning a replacement keyboard inside an Amiga 1200, but these days I do more printing and designing than vintage computing. It's a lot of fun!

They have become a little bit rare. I would 3D print one or just take a plastic shaft (big knitting needle perhaps) and shape it on a belt sander.

I'm guessing no, great opportunity to move to a new PCB - but you won't know until it's clean.

I did a similar thing for the also-unobtainable DB23: https://aeberbach.github.io/posts/2021-08-26-amiga-db23/ STL files: https://www.printables.com/model/81148-db23-plug-for-amiga-floppy-drive I can probably dig up the Solidworks source files if anyone wants them. I found the biggest problem...

Yes Apple labelled the 1.5GHz as 1.42GHz (at least the one I had, which did have the 64MB VRAM) - officially the 1.5GHz didn't exist. You can look up the serial number.

I've experienced 240V mains a few times, it's never something you want to repeat. But this has been on a wooden floor, wearing shoes, one-handed. There's no calculating how bad it will be @smrieck511 - the consequences can depend on your personal conductivity and vulnerability, the path from the...

Probably the Radius Rocket was faster, yes, but available when the IIfx launched? How much later did the first Amiga 040 appear? There's probably a youtube video about exactly who had the lead in the race to Mac faster in the 90s.