Albert's Attic Gallery

A halfwave dipole for VHF channel 1 was about 3 metres long. A vertical dipole of this length would not fit in a normal loft, so there had to be a compromise of some sort. This late 1950s or early 1960s Belling Lee design uses what appears to be 300Ω ribbon feeder for the lower part of the bottom quarter wave section, as shown on image 2. The idea was that this should be stretched out as far as possible, using all the available height. The top quarter wave section was telescopic, and was adjusted for the correct length for the required channel.
The Band III section had a reflector and a director chain, and used the Band I dipole to collect the signal. The whole array was made from very lightweight aluminium strip or tube, and was supplied in folded-up form in a surprisingly small carton.

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