Modem
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2000.0170.001
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- OBJECT TYPE
- ACOUSTIC COUPLER
- DATE
- 1973
- ARTIFACT NUMBER
- 2000.0170.001
- MANUFACTURER
- Applied Communications Corp.
- MODEL
- PHONETYPE/TU-4
- LOCATION
- Belmont, California, United States of America
More Information
General Information
- Serial #
- J-6208
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- METAL CASING & PARTS/ SYNTHETIC CONTROLS, POWER CORD, PARTS
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 29.0 cm
- Width
- 24.2 cm
- Height
- 6.9 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
- Applied
- Country
- United States of America
- State/Province
- California
- City
- Belmont
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- ca. 1973+
- Canada
-
According to Ms. Vatcher-Ryan, in Canada Bell would provide teletypewriter so that deaf person with modem (such as Ms. Hebert) could communicate directly with others with same equipment. Originally this equipment was used by Ms. Hebert's mother, then by Ms. Vatcher-Ryan. - Function
-
Used with modified teletypewriter 2000.0169 to enable deaf and hard of hearing people to communicate using ordinary telephone lines. Modem converted TTY signals into tones that could be carried by voice band of telephone line (ref. 1). - Technical
-
Frequency shift acoustic coupler modem developed in 1963-1964 by Californians Robert Weitbrecht and James Marsters, both deaf or hard of hearing; it enabled two individuals to communicate using two teletypewriters. R.H. Weitbrecht Co. was founded in 1965 to manufacture modems. In 1967 it was replaced by Applied Communications Corp. - Area Notes
-
Unknown
Details
- Markings
- BLACK LETTERING ON FRONT READS "PHONETYPE/ U.S. PATENT NO. RE 27,595/ CANADIAN PATENT NO. 873,989/ APPLIED COMMUNICATIONS CORP./ BELMONT, CALIFORNIA"/ BLACK LETTERING ON FRONT FOR CONTROL FUNCTIONS/ GOLD LETTERING ON BLACK LABEL ON UNDERSIDE READING "MODEL TU-4 SERIAL J-6208"
- Missing
- APPEARS COMPLETE
- Finish
- TEXTURED BEIGE PAINTED CASING/ GOLD SYNTHETIC? COVERED FRONT PANEL/ BLACK SYNTHETIC PARTS/ GREY CORD
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Applied Communications Corp., Modem, after 1973, Artifact no. 2000.0170, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2000.0170.001/
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