Sudarsian, Kiwamu (WP 5354)

Just a brief update: we have put the modified servo box of the ISS 2nd loop back in the PSL electronics rack. Even though this modification does not complete our planned modification, we were able to stably close the 2nd loop. The guardian needs to be updated because the new circuit has a dffierent output bias which tends to unnecessarily pull the first loop operating point. We will work on it at some point. Also, Sudarsian took some transfer function measurements. He will post some alog about it.