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Morse Transmission Set [Single Needle Telegraph]; Siemens Brothers and Company Lim...

Morse Transmission Set [Single Needle Telegraph]; Siemens Brothers and Company Limited (Germany, estab. 1847), Associated Telegraph Manufacturers; 1978.1862
Name/Title
Morse Transmission Set [Single Needle Telegraph]
About this object
Single needle telegraph Morse transmission set.
1. Relay on the left is made by Siemens, London.
2. Single needle indicator (centre rear) made by A.T.M. (Associated Telegraph Manufacturers), England.
3. Change-over switch (centre) duplex/single.
4. Variable resistance tank on the right.
5. Standard Morse key in the front.

Maker Role
Manufacturer
Maker Role
Manufacturer
Place Made
London
Collection
Telecommunication
Credit Line
The Museum of Transport and Technology (MOTAT)
Object number
1978.1862
Copyright Licence Help
All rights reserved
+ Add Comment
Ron McMullen23 Jan 2017 04:50 AM,UTC
The rear item is a differential galvanometer. Totally different to a single needle system.
The switch is duplex/simplex. ... Ron