http://www.youtube.com/watch?v=n-nGr534eP4 - Westerville
http://www.youtube.com/watch?v=eIB21Lv8Myc - Unknown location
http://www.youtube.com/watch?v=SaXf7Pvw9TQ - Westerville P.2 (Includes wind down.)
http://www.youtube.com/watch?v=K8tEpQFh0uI - faintly heard.