Ibrahim, Oli, Betsy

Today, alog 90834 found a ground loop issue with QOSEM SN 13 so we had to swap and center. We then swapped it with QOSEM SN 25, which immediately yielded noise. The red LED was not on, so this QOSEM was broken (despite 25 not being an unlucky number). We then swapped it with QOSEM SN 16, and centered it.

We will recenter everything else tomorrow or after.