Startup

Turn on the klystron power supply. Both the klystron and the detector have a similar appearance - the klystron is the one with the power cord! Rotate the on-off switch about $1/3$ turn, and wait $30$ s or so for the tube to warm up. Point the klystron horn toward the detector horn and separate the two by about $20$ cm. Adjust the on-off knob on the klystron while you watch the detector meter. You should see the power indication increase and decrease as you rotate the knob. The adjustment is very sensitive, but you will find a setting that will produce a maximum signal. Once this setting is found, you should leave it alone for the duration of the experiment. It will probably be necessary to also adjust the attenuator on the detector, but this is not a critical adjustment and you may change it later as the experiment progresses.