The power supply 69 may be connected to {HEAD ~ the conductors} 56 that are connected to the actuator 68 and may also be connected to {TAIL ~ the conductors} 56 in the interior of the tube 50 
The power supply 69 may be connected to { HEAD ~ the conductors } 56 that are connected to the actuator 68 and may also be connected to { TAIL ~ the conductors } 56 in the interior of the tube 50
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH