Gantenbein, G., Samartsev, A., Dammertz, G., Jelonnek, J., Losert, M., Schlaich, A., et al. (2012). Experimental Investigations on a Frequency Step-tunable Gyrotron with a Diamond Brewster Angle Output Window. Talk presented at US-EU-JPN RF Heating Technology Workshop. Nara. 2012-12-11 - 2012-12-13.