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Title
Duplex: Three Stations in Circuit
Reference
UK0108 NAEST 020/315
Date
n.d.
Scope and Content
Colour diagram of three duplex stations in circuit. Stations labelled"Down. A" , "Immediate. B" and "Up. C". Diagram initialled "FJW" [F J Wilmot]
Physical description
Number of pieces: 1, Pages/folios: 1
Language
English.
Persons keyword
Wilmot F J
Subject
Telegraph equipment
Conditions governing access
Open
Level of description
file

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110000001
NATIONAL ARCHIVE FOR ELECTRICAL SCIENCE AND TECHNOLOGY
contains 322 parts
- UK0108 NAEST 020
  Baker Collection: Papers of Sir William Henry Preece
  contains 213 parts
  - UK0108 NAEST 020/315
    Duplex: Three Stations in Circuit

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