Key Information
Reference code
K/PP107/11/1/15
Title
Telegraph relay, [1850-1870]
Date(s)
- [1850 - 1870] (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 a circular brass mechanism with a glass top, and brass knobs (labelled D, D, T, M, U, U) mounted on a circular wooden base. [See K/PP107/1/4/100 for a description of improvements for relay for automatic telegraph.]