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

Summary:
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.
Description:
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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