Gain Notes for Revolution 273 JEM-X1: A revolution broken by one unplanned switch-off but with fine gain smoothing. All data from this revolution should be useable. The first two points of each data set are the partial switch-on with the High Voltage 3 steps below its nominal value. The data is broken by a quite long unplanned switch-off but this has no effect on the gain smoothing or the quality of the data correction. CAO 17/11/2005