Summary
Booklet describing the type "B" carrier telegraph system as developed by the Western Electric Company. This system allowed frequency multiplexed telegraph messages to be superimposed on lines carrying normal telegraph and telephone messages. The booklet was intended for use by those responsible for the maintenance of the system.
The booklet was published by the Australian Postal Electricians' Union in 1928.
Physical Description
Booklet of 52 pages, card cover.
Title
'AUSTRALIAN POSTAL ELECTRICIANS' UNION MAINTENANCE CIRCULAR NO.2 ... THE TYPE 'B' CARRIER TELEGRAPH SYSTEM'
More Information
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Collection Names
Curatorial Research Files Trade Literature Collection (Deposit No.1), Telegraphy Collection
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Collecting Areas
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Acquisition Information
Transfer from Science & Technology Collection, Museum of Victoria, Jun 1997
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Manufacturer/Distributor
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Publication Date
1928 circa
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Publisher
Australian Postal Electricians Union, Melbourne, Greater Melbourne, Victoria, Australia, 1928
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Inscriptions
Front cover printed: "Australian Postal Electricians' Union MAINTENANCE CIRCULAR No. 2 DISTRIBUTION LIST N - SERIAL No. 1 The Type "B" Carrier Telegraph System Published by the above Union by special permission of the Chief Electrical Engineer [Text] PRINTED 1928 BY THE RUSKIN PRESS, RUSSELL STREET MELBOURNE"
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Brand Names
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Number of Pages
52
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Page Size Format
185 x 245
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Primary Subject
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Illustration Types
Black & White; Line Drawings; Instructional Drawings
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Printing Types
Monochrome
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Publication Types
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Classification
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Category
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Discipline
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Type of item
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Overall Dimensions
250 mm (Length), 190 mm (Width), 5 mm (Height)
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Keywords
