The device also includes a power circuit in electrical communication with the electrodes and electrically connectable to {TAIL ~ a power supply} for energizing {HEAD ~ the electrodes} 
The device also includes a power circuit in electrical communication with the electrodes and electrically connectable to { TAIL ~ a power supply } for energizing { HEAD ~ the electrodes }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD