Power card PCBs arrived. This card will take mains and generate -15V/+15V (general), +5V (digital), and quiet -12V/+12V (analog) supply rails. Medical grade primary AC/DC converter (mounts on the back side of this board). Spread-spectrum +5V DC/DC. Ripple rejection and judicious filtering on the relevant supplies.

Hopefully quiet enough that the rails can be used on a fairly accurate ADC card. Or, at least they won't be contributing to a noisy environment for the cards.