993.1153.1: Tuning Fork, 1946-1972

Additional Images

993.1153.1: Tuning Fork.
Image No. 1371 ; Photographer: Helen Kingsley

Object Description

Standardized tuning fork, invented by Gardiner Brown, with base for Rinne's Test, "C" 128 vibrations. Manufacturer's name 'DOWN MAYER' and 'C0 128' stamped at base of prongs.

Object Classification

Accession Number: 993.1153.1
Collection: Otolaryngology
Date: 1946-1972

Object Dimensions

  • Length: 22 cm
  • Width: 2.5 cm

Object Parts

Object Materials

  • chrome plate,
  • steel

Acquisition Detail

  • Manufacturer: Down Bros, Mayer & Phelps Ltd.
  • Owner: Dr. N.M. Arnott
  • History of Use: "C" is marked the "characteristic" of the fork, that is the number of units (i.e. seconds heard in the air, divided by half intensity period) which the fork can be heard in air after its sound conducted through bone has ceased, enabling a quick method to detect conductive hearing loss.