Summary
Electrically maintained tuning fork, Tinsley type 18030. Made by H. Tinsley & Co., England, circa 1950.
Used for putting time markings on recorder charts, especially in physiological work.
Physical Description
Consists of precision tuning fork, with adjustable weights on tines, multiple electrical make & break contacts, lever controlled fork movement clamp. In wooden box with glass top. Contents from List of Parts Field: Trade Literature
More Information
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Collecting Areas
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Acquisition Information
Donation from Telecommunications Division, Royal Melbourne Institute of Technology (RMIT), 07 Apr 1983
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Manufacturer
H. Tinsley & Co Ltd, London, England, Great Britain, circa 1950
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Classification
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Category
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Discipline
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Type of item
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Overall Dimensions
44 cm (Length), 16 cm (Width), 11 cm (Height)
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Keywords
Clocks, Physical Apparatus & Instruments, Time Standards, Tuning Forks, Horology