Telephone, deaf-aid

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OBJECT TYPE
KEYBOARD SEND RECEIVE (KSR)
DATE
1981–1985
ARTIFACT NUMBER
1993.0010.002
MANUFACTURER
Northern Telecom Ltd.
MODEL
VISUAL EAR 09R
LOCATION
Canada

More Information


General Information

Serial #
8023006R
Part Number
2
Total Parts
4
AKA
N/A
Patents
N/A
General Description
SYNTHETIC/ METAL

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length
23.0 cm
Width
19.0 cm
Height
8.5 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Medical Technology
Category
Assistive technologies
Sub-Category
N/A

Manufacturer

AKA
Northern Telecom
Country
Canada
State/Province
Unknown
City
Unknown

Context

Country
Canada
State/Province
Unknown
Period
1981 THROUGH 1990
Canada
DEVELOPED BY BELL NORTHERN RESEARCH IN COOPERATION WITH THE ONTARIO MISSION OF THE DEAF TO REPLACE THE MECHANICAL TELEPRINTERS USED BY THE DEAF FOR TELEPHONIC COMMUNICATION/ MFG IN CANADA
Function
USED BY THE DEAF TO COMMUNICATE VIA THE NORMAL TELEPHONE NETWORK
Technical
PRIOR TO TDD'S, THE DEAF COMMUNICATED THROUGH THE TELEPHONE NETWORK VIA TELEPRINTERS WHICH USED A COUPLER TO CONVERT DC BAUDOT TOFM AUDIO TONES; THESE TONES WERE THEN CONVERTED INTO DC PULSES TO OPERATE THETELEPRINTER/ WITH THE PORTABLE TDD IT MADE IT POSSIBLE TO USE ANY PHONE (HOME, PAYPHONE ETC) TO COMMUNICATE
Area Notes
Unknown

Details

Markings
.1: BACK - '80240180P/ nt northern/ telecom/ NT0C50AB/ 09R/ MADE IN CANADA/ OCT 1982'/ DECAL: 'Communications/ Canada/ 332 082 A'/ FRONT - 'VISUAL EAR/ [STANDARD KEYBOARD]'/.2 SAME AS.1 EXCEPT: '8023006R' 'JUIN 1982'/ STICKER ON FRONT: 'GA= go ahead SK= sign off/ GA or SK= go ahead or sign off'
Missing
.1 & .2 BATTERY PACK
Finish
.1 &.2 DARK BROWN SHINY BODY; BROWN & ORANGE KEYS WITH WHITE PRINTING; BLACK STRAP & PHONE REST
Decoration
N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Northern Telecom Ltd., Telephone, deaf-aid, between 1981–1985, Artifact no. 1993.0010, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1993.0010.002/

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