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Fact of the day: It was in this month in 1917 that Lucien Levy in France made the first receiver using the superheterodyne principle for the elimination of atmospherics. It used a variable IF stage and not the fixed frequency IF normally used. It was also the day on which Albert Einstein, the famous physicist died in 1955.
Quote:Engineering problems are under-defined, there are many solutions, good, bad and indifferent. The art is to arrive at a good solution. This is a creative activity, involving imagination, intuition and deliberate choice. Ove Arup
Point to ponder: Edwin Armstrong who invented the superhet radio receiver also invented wide band FM and is credited with the invention of the regenerative receiver.
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