Ian Poole

Electronics Notes, incorporating Radio-Electronics.com provides radio & electronics tutorials and notes covering basic concepts, components, radio technology, constructional techniques, ham radio, & electronics history…
Electronics Notes is written and run by Ian Poole

Electronics Notes Videos

Georg Simon Ohm

Georg Ohm:   Georg Ohm was one of the pioneers of electrical science. Coming from a relatively lowly background he worked his way up to become one of the founders of this area of physics and gave his name to the unit of electrical resistance.
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Image for Electronics Notes Ham Radio Store: National Radio Centre, Bletchley Park, Milton Keynes, UK, with permission RSGB


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Marconi's Magnetic Detector

The magnetic detector, often called Marconi's Magnetic Detector, was widely used in early wireless systems where it was far more sensitive and robust than the coherer. It performed well on ships, and was used for Marconi's first Transatlantic transmission.