Albert's Attic Gallery
After
various design changes over the previous ten years, Antiference
arrived at this version of the 'Trucolour' design in 1972. The drawing
shows the all-important folded dipole. The revolutionary design
gave good bandwidth and matching, and didn't need a balun. It was
similar to the dipole used on Belling-Lee UHF aerials, a company
absorbed by Antiference a few years before. The Trucolour, or 'TC'
range, was an important milestone for Antiference, because the design
has stood them in good stead with only minor modifications ever
since. The predecessor had a straight, rather than angled, reflector
bar. The design before that had a balun hanging below the dipole,
looking somewhat like a cow's udder, and occasionally prone to waterlogging
(see pictures elsewhere in this section).
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