Folder No. 5 Crossbar book

This is a digital reproduction of a book published by Bell Labs containing a number of articles from 1949 to 1951 that detail most aspects of the No. 5 Crossbar. The articles were all publised in the Bell Laboratories Record.

The entire book is 150 pages. Due to the large number of images the book is presented with each article in a separate PDF. This makes the file sizes more manageable. Scanned and converted to PDF by Sam Etler.

Documents

pdf 20-OperatorConnections Popular

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20-OperatorConnections.pdf

20-OperatorConnections

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 21-ColdCathodeTubeTestSet Popular

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21-ColdCathodeTubeTestSet.pdf

21-ColdCathodeTubeTestSet

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 22-MaintenanceFacilities Popular

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22-MaintenanceFacilities.pdf

22-MaintenanceFacilities

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 23-AutomaticMonitor Popular

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23-AutomaticMonitor.pdf

23-AutomaticMonitor

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 24-TroubleRecording Popular

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24-TroubleRecording.pdf

24-TroubleRecording

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 25-RegisterAndSenderTesting Popular

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25-RegisterAndSenderTesting.pdf

25-RegisterAndSenderTesting

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 26-PermanentSignals Popular

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26-PermanentSignals.pdf

26-PermanentSignals

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 27-PulseConversion Popular

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27-PulseConversion.pdf

27-PulseConversion

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 28-AlarmSystem Popular

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28-AlarmSystem.pdf

28-AlarmSystem

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 29-InterofficeTransferOfAlarms Popular

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29-InterofficeTransferOfAlarms.pdf

29-InterofficeTransferOfAlarms

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 30-AMATranslator Popular

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30-AMATranslator.pdf

30-AMATranslator

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 31-Pretranslation Popular

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31-Pretranslation.pdf

31-Pretranslation

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 32-TrafficRegisters Popular

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32-TrafficRegisters.pdf

32-TrafficRegisters

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

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