Key Information
Reference code
K/PP107/11/1/14
Title
Telegraph relay, [1840-1850]
Date(s)
- [1840 - 1850] (Creation)
Level of description
Item
Extent
1 item
Scope and content
Telegraph relay used for long distance lines by re-transmitting a signal to the receiver or other apparatus. Consists of an electromagnet housed in a semi-circular wooden case. [See K/PP107/1/4/100 for a description of improvements for relay for automatic telegraph.]