Skip to main content
Collection
Collection
Learning
The group
Visit us
Expand child menu
Locomotion
National Railway Museum
National Science and Media Museum
Science and Industry Museum
Science and Innovation Park
Science Museum
Collection
Search
About
Search
About
Collection
Learning
The group
Visit us
Expand child menu
Locomotion
National Railway Museum
National Science and Media Museum
Science and Industry Museum
Science and Innovation Park
Science Museum
Search our collection
All
5
People
0
Objects
5
Documents
0
View:
Filter search
Clear all filters
Image
Has Image
5
Non-Commercial Use
4
Category
Electricity Supply
3
Industrial Chemistry
1
Radio Communication
1
Maker
Marconi's Wireless Telegraphy Company Limited
1
Salt Union Ltd. (Winsford)
1
On Display
Science Museum
1
Information Age Gallery: Cable
1
Object type
ammeter - moving iron
1
dynamometers
1
inductor
1
meter
1
models
1
models; saltworks
1
saltworks
1
Place
Chelmsford
1
Chelmsford, Essex, England, United Kingdom
1
Winsford
1
Winsford, Cheshire, England, United Kingdom
1
Material
painted wood
5
glass
2
lacquered copper alloy
2
wood
2
black coated metal
1
coated electrical wiring
1
copper
1
copper alloy
1
cork
1
lead
1
Date
From
To
filter
High-frequency chokes, 1900-1950
1900-1950
Siemens dynamometer ammeter
Open pan salt making, handed-square salt pan and stove, 1842-1924
1924
Siemens moving iron ammeter
Edison's electrolytic A-H. meter?
