 It used until July 27, 1964, a 1350 ft (411.48 metre) tall mast radiator, which was built in 1963.On July 27, 1964, this tower collapsed as a result of a fatigue failure of an eyebolt head in a compression cone insulator on a structural guy.The collapsed tower was replaced afterwards by a 704 ft (214 metre) tall mast radiator.