BIG Propers to @sealion for writing this using notes that you all generated! Because honestly, the chances that I ever would have were not great :-)
This is a guide which uses all the forum discussions on assembling the early WTPA boards that I sell to make an extensive set of notes. I've proofed it and it's correct. It's on the main page of the site but the direct link is below. Best of luck!
I'd call that a pretty significant error! Thanks for catching that, SMRL (R31 is actually in the R2R ladder for the DAC, not the ADC, but...) I'll fix and repost. :-)
Fixing it. Will send changes to Todd today. I make it only an error in one spot. at teh end teh section about R31's rseistor value is correct i think. let me know about any other changes or places it can be improved.