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LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicensePentex production unit: B switch
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Pentex production unit: B switch
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Pentex production unit: B switch
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Pentex production unit: B switch
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Pentex production unit: B switch
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Pentex (TXE2) production unit: B switch, made by Plessey Company Limited, England, 1965-1971
Pentex production unit: B switch, made by Plessey Company Limited, England, 1965-1971.
TXE2 systems were introduced in 1966, as a replacement for small and medium Strowger telephone exchanges across the UK. They were intended as a stop-gap until a fully digital exchange system could be developed. They used a form of connector switch called the reed relay. Over 1500 units were installed, the first being at Ambergate in Derbyshire. Pentex was name for TXE2 systems that were not sold to the Post Office. They was used in over 30 countries.
Details
- Category:
- Telecommunications
- Object Number:
- 1971-223
- Materials:
- metal (unknown), copper (alloy) and plastic (unidentified)
- Measurements:
-
overall: 60 mm x 220 mm x 475 mm, 4.8 kg
- type:
- relay
- credit:
- Donated by Plessey Telecommunications
