A mobile (on wheels) assembly of mains electricity (AC-powered) devices intended for the treatment and/or diagnosis of neurological, psychiatric and/or cognitive conditions (e.g., Alzheimer's disease, major depressive disorder, pain) through noninvasive magnetic stimulation of the brain and/or peripheral nerves. It consists of an electromagnet with a control unit intended to produce electromagnetic field pulses to induce neurological electrical activity, and a patient chair; types intended for transcranial magnetic stimulation (TMS) may include cognitive training tools.