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    User name jpchen

    Log entry time 11:19:24 on December 4,2006

    Entry number 190001

    keyword=Left gas Cherenkov PMT HV changes

    Bogdan is in the hall to check out the PMT for left gas Cherenkov.
    Per his instruction, I first turned off all 10 channels HV.
    Then changed Ch1 (2nd channel) from -1870V to -1600V and turned it on.
    Then changed it again to -1700 V and turned on all 10 channels.
    Then started cosmic run 1306.