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Telegraph Relay - Non-Polarized, late 19th Century
Reg. No: ST 008465
- Summary:
- Relay used at telegraph receiving stations, particularly those operating on long connecting lines. Often signals received over long lines were too weak to operate the receiving instruments directly so the relay served as a very sensitive switch to connect a local battery to the receiving instruments.
- Description:
- Wooden base. Two horizontal coils with ebonite covers at on end of base.Brass terminals and components.
| Discipline: | Technology |
| Dimensions: | 95 mm (Height), 150 mm (Width), 240 mm (Length) |
More information
| Tagged with: | electrical relays, telegraphy |
| Themes this item is part of: | Copy of text for label for Non-Polarised Telegraph Relay - American Pattern, 1916, Telegraphy Collection, Information & Communication Collection |
| Primary Classification: | COMMUNICATIONS |
| Secondary Classification: | Telegraphy |
| Tertiary Classification: | input/output |
Themes
This item is part of the following themes:
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