[chub, gautam]

We scoped out the 1Y3 rack this morning to figure out what needs to be done hardware wise. We did not think about how to power the Acromag crate - the LSC rack electronics are all powered by linear supplies and not Sorensens, and the linear supplies are operating at pretty close to their maximum current-drive. The Acromag box draws ~3A of current from the 20 V supply, not sure what the current draw will be from the 15 V supply. Options:

1. Since there are sorensens in 1Y2 and 1Y1, do we really care about installing another pair of switching supplies (+20 V DC and +15 V DC) in 1Y3?
   • Contingent on us having two spare Sorensens available in the lab. Chub has already located one.
2. Use the Sorensens installed already in 1Y1. 
   • Probably the easiest and fastest option.
   • +15 V already available, we'd have to install a +20 V one (or if the +/-5 V or +12 V is unused, reconfigure for +20 V DC).
   • Can argue that "this doesn't make the situation any worse than it already is"
   • Will require the running of some long (~3 m) long cabling to bring the DC power to 1Y3 where it is required. 
3. Get new linear supplies, and hook them up in parallel with the existing.
   • Need to wait for new linear supply to arrive
   • Probably expensive
   • Questionable benefit to electronics noise given the uncharacterized RF pickup situation at 1Y2

I'm going with option #2 unless anyone has strong objections.