Record

RefNoACS/1/2/1/775
AltRefNo831
LevelItem
TitleLetter from [Alan Archibald Campbell] Swinton, to The Editor, The Electrician
CreatorSwinton; Alan Archibald Campbell (1863-1930); British electrical engineer
Date27 May 1921
DescriptionInforms that whilst listening to the Johnsen-Raheem Electrostatic Loud-Speaking Telephone and Relay, at the Institution of Electrical Engineers, he experienced a dim feeling of having had read of similar apparatus working on the same principle. Recalls Edison's loud-speaking telephone with its rotating cylinder of moistened chalk but also recollected that in effect of reducing the friction between the cylinder and the metallic slider rubbing thereon owing to electrolytic decomposition. Discusses further in detail, concluding that whilst nothing is new under the sun, the revival in an omproved and modified form of what would seem to be an old idea appears likely to have several useful present-day applications.
Extent2p
FormatTypescript
PhysicalDescriptionCarbon
AccessStatusOpen
Fellows associated with this archive
CodePersonNameDates
NA8285Swinton; Alan Archibald Campbell (1863 - 1930); electrical engineer1863 - 1930
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