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www.southgatearc.org
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The Ingenious Circuits of Sir Douglas HallSir Douglas Hall had many radio designs published from the 1940's to 1990's in UK publications such as Practical Wireless, Radio Constructor and Radio Bygones. Fortunately scans of these classic designs are available on the web. In a recent posting on the GQRP reflector Steve G0XAR highlighted a website that contains many of the classic radio designs by Sir Douglas Hall. The first article on the website was published by Practical Wireless back in December 1943, a time when the Kingdom and Empire were engaged in total war with the Axis powers, and it starts thus: Wireless is therefore supremely important but there are several problems in the design of a receiver suitable for these conditions. It must be very sensitive to provide reliable reception from Daventry [in the UK] under all conditions, and it must be very economical owing to the high cost of batteries in these parts. They are not only expensive, but very difficult to secure." The designs of Sir Douglas Hall can be downloaded from The Telegraph Obituary - Sir Douglas Hall, Bt GQRP Yahoo Reflector PW Publishing Ltd Radio Bygones
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