Reports until 15:51, Friday 23 March 2018
H1 PSL (PSL)
peter.king@LIGO.ORG - posted 15:51, Friday 23 March 2018 (41136)
70W power amplifier update
Aligned the output of the 70W power amplifier into the pre-modecleaner.  Tried locking the pre-modecleaner
but the mode matching used to make the output of the power amplifier mimic the high power oscillator was not
good enough.

    The SMA to BNC adapters for the RF summing box were replaced.  It was noticed that tightening these
eliminated the RF signal altogether.

    I have turned off both the front end laser and the power amplifier.