How do you make simle ultrasound machine?
One would need more information as to the type of machine you are enquiring about.My guess is any bioactive device if that is the purpose(like X-rays) would be tightly controlled by the F.D.A., yes the Food and Drug Administriation and certainly not in the Hobby Shop, Radio repair store, or amateur category, the situation is analogous to (Ham) X-ray devices. It mgiht be possible to cob ble up some form of Ultra violet or infr-red Night vision devices from hobbyist sources, but one gathers you want somehtng to see inside the Human body. There be total Bans!