Home:   Galvanometers

Please Note: Not all of the objects on this website are on display at the museum.

A Brief History of Telegraphy

A Brief History of Telegraphy

A Short History of the Galvanometer

A Short History of the Galvanometer


Image of G.P.O. No83 GALVANOMETER IN LEATHER CASE, 1930's

Larger image

G.P.O. No83 GALVANOMETER IN LEATHER CASE, 1930's

GPO engineers Tangent Galvanometer in leather case Type No 83 maker unknown.

View 1 comment about this object

A1527

Image of SILVERTOWN TELEGRAPH WORKS GALVANOMETER, 1930's

Larger image

SILVERTOWN TELEGRAPH WORKS GALVANOMETER, 1930's

Used to detect current in either direction in Telegraph circuits on receiving or sending stations. Also used as test equipment and known as a differential type. Made at the Telegraph Works Silvertown.

View 3 comments about this object

A1469

Image of GPO 970  DIFFERENTIAL GALVANOMETER, 1930's

Larger image

GPO 970 DIFFERENTIAL GALVANOMETER, 1930's

Used to detect current in either direction in telegraph circuits on receiving or sending stations. In Differential mode two coils deflect the needle left or right; if the current through both coils is equal then the needle will remain central.
Also used as a piece of test equipment.

Be the first to write a comment about this object

A0239

Image of POST OFFICE GALVANOMETER GPO 41, 1930's

Larger image

POST OFFICE GALVANOMETER GPO 41, 1930's

Used for indication of signal direction ( Current ) in telegraphy systems also as a test instrument.

View 2 comments about this object

A0241

Image of EDISWAN GALVANOMETER, 1930's

Larger image

EDISWAN GALVANOMETER, 1930's

Used to detect current in either direction in telegraphy systems.
Also as test equipment.

Be the first to write a comment about this object

A0240

Image of SILVERTOWN GALVANOMETER, 1916

Larger image

SILVERTOWN GALVANOMETER, 1916

Used as either a piece of test equipment or to send or receive Morse.
The needle could deflect either left or right dependent on the direction of the current,or could measure the strength of the current by the deflection measured in degrees.

View 1 comment about this object

A0328


Further Reading (external sites):




Back to top

©2007 The Museum of Technology, The Great War and WWII
Company registered in England No. 7452160, Registered Charity No. 1140352, Accredited Museum No. 2221