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Title
Arrangement of Stearns' Duplex Repeater with looping switch
Reference
UK0108 NAEST 020/073
Date
1873-07
Scope and Content
Pen and ink diagram of Stearns' duplex system [as working at] Haverfordwest Relay Station. Shows Stearns' duplex bridge and relay shunts.
Physical description
Pages/folios: 1
Language
English.
Persons keyword
Stearns Joseph Barker
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 020/073
    Arrangement of Stearns' Duplex Repeater with looping switch

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