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Digital Clinical Audiometer

Toronto Rehabilitation Institute

A wedge-shapes instrument with wooden sides, pale green trim, and a black console with several knobs and dials.

Clipped to a bracket on the top surface of the instrument is a portable cassette player made by Sony.

A grey-coloured power cord with a plug of molded transparent plastic is attached to the back of the instrument.

A black, hand-held controller featuring a single button is plugged into the back of a console at a jack labelled “patient response”.

A grey headphone-like peripheral is plugged into the back of the instrument at a jack labelled “bone”.

A sturdy, black-coloured headphone is plugged into the back of the instrument at jacks labelled “right” and “left”.

Accession Number: 2018.rehab.22

Alternative Name: Interacoustics AC3

Primary Materials: Metal, Wood, Plastic

Markings:

Attached to the right side the front console is a printed sticker from “Electro-Medical Instrument co. in Mississauga, On” This has the following information written on it: “DO NOT USE” “Cablibrated March 13/14” “*FAILS*”

Attached to the left side the front console is a printed sticker that reads “THE QUEEN ELIZABETH HOSPITAL ASSET NO. 15639”.

Attached to the upper-left side the front console is a white sticker with the following information written on it: “EAR 3A-10// 2-2883 // R-2884” that reads “THE QUEEN ELIZABETH HOSPITAL ASSET NO. 15639”.

On the top of the instrument is pasted a note written on a yellow sheet of paper that reads: “March/ 13/ 2014 // AC3 AUDIOMETER: Do not use- Channel 1 tone low & distorted Audiometer obsolete (~30+ Yrs) & not worth repairing. // Ried Cameron// EMI”

One the back of the instrument is a sticker from Ontario Hydro, Special Inspection Health Care Equipment. This includes the following information: “Model AC3// Serial 3308// File No OH30-227-R32// Risk Class 2G”

Dimensions (cm): Height = 18, Width = 50.6, Length = 45.

Function:

The clinical audiometer is a diagnostic instrument used to test hearing acuity by generating a range of standard audio signals.

Condition:

The instrument is in good cosmetic condition with only minor dust and wear. It appears to have received minor modifications, for instance a mounting bracket for a portable cassette player. As various attached labels and notes indicate, the instrument is not in working condition.

Associated Instruments:

Manufacturer: interacoustics, Denmark.

Date of Manufacture: late 20th c.

Provenance:

This artifact among a collection of items acquired from the Toronto Rehabilitation Institute on December 6th, 2017.

Additional Information and References:

Historical Notes:

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