Carrier terminal
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1968.0307.001
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- OBJECT TYPE
- OPEN WIRE/3 CHANNEL
- DATE
- 1936
- ARTIFACT NUMBER
- 1968.0307.001
- MANUFACTURER
- NORTHERN ELECTRIC CO.
- MODEL
- C5
- LOCATION
- United States of America
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- Unknown
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- N/A
- Width
- N/A
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Communications
- Category
- Telephony
- Sub-Category
- N/A
Manufacturer
- AKA
- NORTHERN ELECTRIC
- Country
- United States of America
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Canada
- State/Province
- Quebec
- Period
- 1940'S TO 1960'S
- Canada
-
This unit was removed from the St. Pie Repeater Station in St. Pie-de-Bagot, QC in 1968. It is labelled "System 1 to Thetford Mines." In 1931 C-carrier became the standard on the TransCanada Telephone System's transcontinental line. - Function
-
TO EFFECT MODULATION, DEMODULATION, FILTERING & AMPLIFICATION AT ONE END OF A CARRIER TRANSMISSION SYSTEM AND TO ALSO EQUALIZE THE TRANSMISSION OVER THE FREQ. RANGE EMPLOYED & REGULATE THE CIRCUIT NET LOSS. TO ALLOW THREE ADDITIONAL VOICE CHANNELS ON TWO PAIRS OF WIRE. - Technical
-
C-CARRIER SYSTEM PROVIDES 3 TELEPHONE CIRCUITS ABOVE THE NORMAL VOICE FREQUENCY CHANNEL. C-CARRIERS WERE THE FIRST TYPE OF TELEPHONE CARRIER SYSTEM WIDELY USED ("A" & "B" SYSTEMS HAD BEEN DEVELOPED BUT WERE NOT PUT TO EXTENSIVE USE). "C" CARRIERS WERE INITIALLY USED IN 1924, THE C-5 WAS A LATE 1930'S REDESIGN OF EARLIER SYSTEMS. IT USES FREQUENCIES BETWEEN 8- 30 KHZ. - Area Notes
-
Unknown
Details
- Markings
- DRAWING NOS. J68758A-2; J68756B-2; J68757B-2
- Missing
- N/A
- Finish
- Unknown
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
NORTHERN ELECTRIC CO., Carrier terminal, after 1936, Artifact no. 1968.0307, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1968.0307.001/
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