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R129 and R130 are swapped on the diagram. Pulling R129 got me a Machine ID of 63 - the gestalt ID of the “unreleased 33 mhz WLCD derivative”. Here’s hoping it’ll be stable.

Pulling R137 just makes it think it's a Quadra 610 (Gestalt 53), changing R130 to1.2K doesn't make any kind of difference. Ideally I'd want to change this machine's Gestalt ID to 63 in order to get the serial clock correct, but I don't know what resistors to pull/add for that.

There's a 300 ohm resistor already at R130. Do I leave that alone or change it for the 1.2K?

So if I pull R137 (300 ohm) and add R130 (1200 ohm) on a Centris 610 motherboard, 33mhz will be guaranteed stable? I'm dropping a 33 mhz full 040 into one here (without onboard ethernet) and I want to make sure it'll be guaranteed stable.

I don't see them on your store. Are you still able to source them? You're right about them being an odd unavailable size...

I pulled it off but they really suck to solder. Very very tight spacing and PLCC SMD shenanigans. I'm not sure how to make it less painful to build these adapters because they're sorely needed not just on computers but arcade games as well. Maybe some new design with a crazy 2-3 layer sandwich...

E-waste crackheds strike again! Yes, it's another cut cord monitor. This one's very, very painful to disassemble but here's what's left of the monitor cord: The monitor consists of 4 PCBs inside: a shockingly tiny neckboard, a power supply board, a deflection/HV board, and an input board. The...

Gonna try these next. Fingers crossed.

I can't use these gerbers in their current form. I found out the hard way: Impossible to upgrade the ROM and SWIM at the same time - which is the only reason you would ever want to upgrade the ROM in the first place. You could use some really tall pins so they miss each other, but then you...

I'm in the same boat with a Mac Plus motherboard. It's actually a little hard to find the exact socket used; it's got a little flange on the top and the socket entry point is a certain height above the PCB. That said I think this is it here...

Ordered a few and so far so good. Now I'm wondering if there's a similar solution for 68-50. Anyone done a blank one of those?

Also consider taking a look at the MacRescue, which is a great candidate for cloning. Adds up to 6MB RAM (4+2mb ramdisk only) and the Mac Plus SCSI hardware. Just add Mac Plus ROMs. You could extend the design by adding a disable switch + ROM switcher, allowing the 128 to operate as originally...

I have here a Quadra 800 that *only* puts out sync on green no matter what adapter I use. I also have a iisi here and that will put out csync on the hsync line if I configure the adapter right. That same adapter, configured identically, is not putting out sync on the sync lines when plugged into...

This is really impressive. I'll be giving it a try. Thank you so much for this!

I have checked all over the net. All that's left are cheapo ones that do not have high byte termination, which means they work with next to no drives. For that matter I can't seem to find 68-50 adapters with high byte termination either.

Tried the 128GB version of this guy, having high hopes. Doesn't boot. It shipped with the ID already jumpered, but if you remove that jumper it apparently IDs as Slave, which is the reverse of how all actual 2.5 hard drives behave. The Wallstreet's connector extends into the jumper area, so...

I get away with using 32GB CFs in the IDE bay all the time. What brand/adapter are you using? I've had good luck with SanDisk Extreme 32GB cards, and bigger cards up to 128GB should work.

What info about the connected hard drive can it see (try system profiler) and does that info look corrupted? could be a hardware/cable issue

It works!

Could you post a Gerber version of the Wallstreet PCB file? I've been waiting years to be able to rebuild these batteries and this is just the thing to make it as painless as possible.