. . . and the mythical no more: Slot C for Alchemy!

Cleaned up baseline research, reference condensed from posts in multiple threads on three different forums over the past 5 or 6 years.
Thanks to all who've helped out in the seemingly interminable research phase. At long last development phase begins!:)



Will be updating as I refine a few other illustrations.

To do:
- noodle out the capacitor setup for the stock 6x00 riser. Slot B
- finalize dimensions: Edgecard connector to Slot A thruholes

@Trekintosh will be stepping in to do schematic capture & PCB development in KiCAD for Marchintosh project, many thanks, Trek!

Update on results of research phase:







Just for shiggles and gits . . .



. . . couldn't resist bodging ComSlot->full PCI conversion on cable based single slot riser Test Rig for A/B/C.



Didn't test this lashup for full function. Borked something on the test riser at some point. Adding rudimentary provision for testing Slot_E on prototype TriSlot card should be trivial.

Hi am trek will do PCB stuff. I wanna start this weekend but cannot guarantee that. I'll do my best tho.