The HVs on those two channels were raised to the original values from before the installation of the second amplifier. The net gain should be the same at the discriminators and ADCs. The single p.e. amplitude at the FE rack amplifier was measured to be 50mV, at it should be.
So 1 p.e. should still be around bin 60 for PMTs 19, 20. Recall those channels are not split into the FADC+1881 but just run into the 1881 alone.
We will see: (a) whether the rates behave, and (b) how much the pedestals
and general resolution improve.
A copy of this log entry has been emailed to: posik, flay, meziani