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Detector - Grasse & Daniell, Radio Receiver, circa 1924 Object Reg. No: ST 015917

Crystal detector. A "Perikon" unit. In order to form a rectifying junction, two minerals, zincite and bornite, are brought into contact in a tube. Made by Grasse & Daniell, Sydney, Australia. Used in radios.
Brass mechanism with glass tube with black insulating caps between two metal plungers containing two mineral pellets Item is mounted on an insulating plate, which, in turn, is mounted on a display block with label.
Discipline: Technology
Dimensions: 44 mm (Height), 43 mm (Width), 92 mm (Length)

More information

Tagged with: radios, radio detectors
Themes this item is part of: Information & Communication Collection, Radio comes of age in Australia - broadcasting begins, 1922 - 1930
Primary Classification: COMMUNICATIONS
Secondary Classification: Radio
Tertiary Classification: receivers
Inscriptions: Display block: CRYSTAL DETECTOR / using the two minerals bornite / & zincite in contact, & known / as the "pericon" detector.

Note: 'Perikon' is misspelt on label.
Manufacturer: Grasse & Daniell, Sydney, New South Wales, Australia, circa 1924

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