32 x 23 x 16". Electric stimulation therapy:Machine. Wooden unit on wheels with rubber cords on the interior and buttons and switches on the top portion. The Defibrillator, also referred to as the "Alternating Current External Cardiac Defibrillator" was constructed by Dr. William B. Kouwenhoven to externally defibrillate the heart with electrodes on the intact chest. This prototype was used by Dr. Joseph S. Redding at MUSC within his laboratory for resuscitation studies.