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Try to avoid those cheap soldering pencils and save up for something nice like a Hakko FX-888D: https://www.amazon.com/Hakko-FX888D-23BY-Digital-Soldering-Station/dp/B00ANZRT4M

So the 800k floppy drive died overnight... Mechanically it's fine but electrically it won't read disks anymore. Not sure what's up with that but I had a spare drive in my junk box that I lubed up and it seems to be working fine now. Does anyone know what resistor packs I need to get for the...

Literally a week after I found my 128, I found another great deal on a 512! Advertised as not working, I bought it because it was cheap and had something very special on the inside... Yep, MacSnap SCSI and 2MB RAM upgrade! Easy fixes on this one too - the entire analog board needed resoldering...

I did find a cheap 512k... Analog board is dead, but I might do a board swap but'll keep the 128 board.

Update! Turns out the eject motor wasn't burned out. I'm not sure what was wrong with it, but I found the missing parts (a C clamp and some washers) and suddenly the drive sprang back into life, motor and all.

You never know what you’ll find when you’re browsing mislabeled items on eBay... Got a pretty good deal on this 128k! The only thing keeping it from booting was a single bad RAM chip which I removed and socketed. Now I’ve got it coming up to the missing disk screen! Unfortunately, the internal...

I would be interested in one!

Final test boards showed up today! Just a couple of minor silkscreen tweaks left to do but otherwise what you see here is going to be the final shipping product. We're also working on finalizing documentation and we plan to have pre-orders live by next week. Until then, here's some pictures!

Hey all, I have a keyboard and trackball from a Portable. I've been reading the service documents and it says they're ADB in a 34-pin ribbon cable. Does anyone know the pinout of the ribbon? It'd be cool to use these with my desktop Macs.

Small update - Final test boards will be delayed much later than originally thought due to the outbreak of Coronavirus in China. PCBway is expecting production to resume on February 10th.

Simple - I'm not skilled enough yet to do anything smaller than a SOIC-8 :D The other reason is that the MAX660 SOIC-8 part is pretty much the least expensive we can get while not being crazy small to solder. There's one from TI that's a few pennies smaller but it's a tiny 5-pin package. 

We decided that in the name of keeping costs down, it was better for us to ditch the DIP socket entirely and use a surface-mount MAX660. This means that the kit version will ship with a MAX660 already soldered to the board - it's not hard to do SOIC-8s by hand, but it's very annoying. Might be a...

Just a small update today - it looks like the best value for a discharge resistor is going to be 10k at a minimum. I'll be sticking with 10k because the mAcTX Compact board has a 10k on the 2N3904 and why make your order any more complicated than it has to be?

Update time! We have new mAcTX prototypes to check out! The mAcTX Compact R4T board respins the board to use a 2N3904 transistor instead of a 7404 inverter. The biggest issue with this board so far is that some of the silkscreen on the back isn't aligned right and gets cut off by the Mac's...

Thanks for all the suggestions, I’ve gone with a pretty decently loaded Centris 650. Quantum hard drive failed but what else is new? Came with a really nice DSP card too and I did manage to pull the data off the hard drive before it died - someone was using this thing as a DAW!

Hey mods, can we get the thread renamed to "mAcTX - ATX to Classic Macs"? Thanks! Yep; I've got the part number for a replacement on-hand, I just didn't buy any for initial testing to keep costs down. I do have a pending order for some though! I've also got a breakout board for the SMT version...

While Compgeke has been busy testing out random IIsis, I've been working on something of my own - introducing the mAcTX LC! As the name suggests, it's an ATX adapter board for the Mac LC series, and it's being designed as a drop-in replacement for the LC's PSU when combined with a picoPSU. We're...

Are the pads on the board okay? Pretty much your only option to do SMT packages like that is to get an iron with a very fine cone tip, or invest in a hot air rework station. 

If it shipped with a 1.44MB floppy drive (looks like it did) then you'll have no issues writing 800k disks. Reading PC formatted disks depends on if you have the PC Exchange extension loaded.

Hey all, what would you recommend as a decent 68040-native machine? I've got a Quadra 610 DOS Compatible that unfortunately the case breaks further if you even look at it funny; I'm probably going to part that system out and replace it with something. But with what? For obvious reasons I don't...