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I've got a test rig that'll boot Alchemy and Gazelle boards with no problems at all, but not my AIO 5500 sub-variant of Gazelle. Does it fail to POST due to lack of internal CRT hookup or might there be another issue with this particular board? If display is indeed the problem, will it POST...

It's Alchemy Architecture, not Gazelle in which this card is problematic without the Great Gazelle PCI Fix. Makes no sense to me unless some PCI equivalent of DeclROM in a NuBus Mac is present? Any suggestions?

@luRaichu jumped into the project with both feet. He did the board layout, ordered the PCBs, the components, assembled the first one and it's in my grubby little paws for testing! All goes well so far outside of playing whack-a-mole with the gremlins actively undermining my attempts to get a...

. . . hopefully! Start of this project was info about the anemic TAM PSU issue from many sources, here, MLA, WWW and ThinkClassic back in that day. Was working on putting together a better Initial Post, but what the heck . . . just chuck it out to the pack of wolves! :p First notion was...

I've long suggested contacting woz to see if he'd release (or recreate) SWIM for the community: We're of an age and thinking it might be a significant addition to his legacy. He's far deep into education and tech talent development thru woz.org. So thinking would be that giving folks young and...

Wondering if a hookup or workaround for running an external antenna lead outside the RFI shielding of a Mac is a possibility? Running the lead to a wire type antenna in a PowerBook lid might be ideal? RFI shielding of a Duo's HDD bay can be tucked underneath, but dunno about other 'Books? Also...

Retrieving a 9 year old project from the pile-o-procrastion on the top shelf of the rack doesn't constitute the necro nonsense Resurgence in obsessive/compulsive leanings here could be mania inducing, gotta watch that. This was brought on by tangential happenings in this year's Marchintosh...

Confusing original post. Will have topic title changed for clarity, skip to: https://tinkerdifferent.com/threads/pci-riser-design-rework-of-github-pcie-riser-howto.5191/post-45946...

MacPortrait appears to max out at ancient TPD resolutions. Is there a current solution? Windows and Ubuntu have had me spoiled for the longest. :rolleyes: The last time I ran a second screen in that orientation on a Mac it was the Macintosh Portrait Display on the 2300c/DuoDock+ next to the 21"...

I've been watching the Budget Oscilloscope discussions . . . https://tinkerdifferent.com/threads/budget-oscilloscope-recommendation.4590/post-39614 . . . but have a problem with spending 10% of the cost of a much more capable medium range O-scope. Budget jobs appear to top out at working...

Found out yesterday that the battery in my Radius 81/110 leaked at some point in the last couple of years. Doesn't appear to have exploded, though I can't get to it for another year or so, in week nine of rotator cuff surgery and that thing is well and truly buried! I'll be able to lift the...

Thruhole PLCC68 sockets seem to be available. Is this what folks have been saying is unobtanium? https://www.ebay.com/itm/235031138033 There seem to be a few listings for thruhole sockets and plenty for SMT Socket listings. The sockets on Performer boards for the Classic look...

Wondering if anyone has seen AI used to crack protected programmable logic? Target chip is the PLDC20G10 on my current obsession, the Radius FPD for Mac Plus. https://media.digikey.com/pdf/Data Sheets/Cypress PDFs/PLDC20G10B, PLDC20G10.pdf 24pin DIP IC provides up to 22 inputs and 10 outputs...

Figured I'd just ask as it's been over seven years since this pic kicked off the clone game in the MLA Hacks Thread: So is the stock 68000 CPU necessary under the Killy Klip in my Drexel Plus or could the Performer (or other, more complex accelerator) be plonked onto a socket installed in its...

Does anyone have this VidCard available for a photo session? It's Radius' first product and one of the very few Radius cards I've yet to collect. Got TPD card for SE in hand and the BT9014 on it appears to be the only problematic Programmable Logic on the board? NuBus Mafia appears to be down...

Can't imagine there'd not be a performance hit, but how bad might it be? Duo2300c would actually be the target machine. Pretty much same machine as 5300/1400, but with SCSI HDD option (supports SCSI HDD/Cable in upgrade package config) but no PCMCIA availability. So curious . . . for a...

Don't wanna tangentially muck up the fabulous IIsi into SE/30 thread that @zigzagjoe has running over at the MLA with this craziness. @Bolle posted parameters of the conversion problem. _______________________________________________________________________________ The Apple 12" 512x384 video...

. . . yet again as once more, this is way above my pay grade. :oops: When spec required 5V for LCD and 12V for Pi/CM4 board, notion was to use a PicoPSU and its AC adapter. Figured I only needed current limiting resistors for those two Pico lines. Now I only need 12V input for both, which...

PowerBook 100/2300c LCD/Logic board upgrade has been in process for well over a decade. This revision has been on the back burner since the Compute Module 4 first came out. The I/O board makes it perfect for this upgrade of my beloved BabyPB, very first laptop, bought new and maxed out in the...

. . . to raze the malignant dining room table monster. Can now concentrate more clearly on the real world hardware phase of a long running obsession. :p