Items tagged electric apparatus instruments in MV Collections
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(showing 1 - 9) 9 items
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Telegraph Line Current Meter - Date Unknown
Meter with scale graduated from +100 milliamps to -100 milliamps, used to measure current in electric telegraph lines.
Images: 1 -
Foot Control - Pedal with Cord, circa 1940
Electrically powered foot control, circa 1940. Exact usage unknown, but may have been used for dental work. Used at a Victorian mental health hospital.
Images: 1 -
No Image Available
Galvanometer - Thomson
Thomson galvanometer. Used at Melbourne Observatory
From: South Yarra, Australia Images: 0 -
Galvanometer - Thomson Astatic Differential, Elliott Bros, London
Thomson astatic differential galvanometer, by Elliott Bros, London. Used at Melbourne Observatory. A galvanometer measures electric currents.
From: London, United Kingdom Images: 1 -
Galvanometer - Thomson Type, circa 1900
Thomson (Lord Kelvin) type galvanometer on wooden base. Used at Melbourne Observatory. Probably dates from around 1900. No manufacturer's markings. A galvanometer measures electrical c ...
From: South Yarra, Australia Images: 1 -
Quadrant Electrometer - Thomson Type, with Glass & Metal Case, circa 1900
Thomson type quadrant electrometer, with replenisher and auxiliary electrometer, circa 1900. Used at Melbourne Observatory. An electrometer measures electrical charge. The basic quadr ...
From: South Yarra, Australia Images: 1 -
Telegraph Mirror Galvanometer - Elliott Brothers, circa 1900
Mirror galvanometer used for receiving telegraph signals transmitted through submarine cables. Such signals were too weak and distorted to drive conventional telegraph receiving equip ...
From: London, United Kingdom Images: 1 -
Quadrant Electrometer - Thomson Type, with Glass Dome, circa 1880s
A simple Thomson type quadrant electrometer. Used at Melbourne Observatory. An electrometer measures electrical charge. The basic quadrant electrometer was developed by Lord Kelvin (S ...
From: South Yarra, Australia Images: 1 -
Current Probe - Ferranti, Sirius, circa 1961
Alternative Name(s): Current Tester A probe used measure electrical current flow in wires. This object is most likely to have been used with the Ferranti Sirius computer.
Images: 1
