These were replaced with electronic controllers, but they are still on the poles as of 2008:
http://maps.google.com/maps?hl=en&ll=33 ... ,,1,-36.67
http://maps.google.com/maps?hl=en&ll=33 ... ,,2,-14.62
http://maps.google.com/maps?hl=en&ll=33 ... 8,,2,-7.38
http://maps.google.com/maps?hl=en&ll=33 ... ,,1,-16.83
http://maps.google.com/maps?hl=en&ll=33 ... 3,,2,-4.96
http://maps.google.com/maps?hl=en&ll=33 ... 54,,2,-6.1
http://maps.google.com/maps?hl=en&ll=33 ... 9,,2,-7.09