Yes, this is normal. The sound of an x-ray machines since the late 1890’s have been described as a rattle, buzz, burp, shake, vibration, etc. A typical 30kW generator pulls 50kW of incoming power, the same amount of power as: 50 microwave ovens set to full power 500 light bulbs rated at 100 W 5000…

Yes, that’s normal. Summit supplied tubes are manufactured by Toshiba, and in general, the anode bearings will be heard while the tube is spinning. The bearing friction is used to ensure the anode does not coast (rotate) for extremely long periods of time, but instead stop within ~ 3 minutes. Tubes that spin for long…

This is normal. Once the tube is up to speed, the generator keeps the tube spinning by applying a 50ms pulse of power 4 times per second. This results in the thumping sound that is heard.