Wheatstone No. 1 original rheostat, 1843
1843
Carbon plate rheostat
Igranic Pacent 10 ohm 1 Amp. rheostat with carton
Rheostat for arc lamp
Carbon cloth rheostat
Plante's rheostat
Wire rheostat, 50 ohm 6 amp by Robert W. Paul
1900-1919
Rheostat with ten turns of thick wire
Rheostat, Kelvin Pattern
1888
Campbell's constant inductive rheostat
1926-1930
Rheostat
Wire wound rheostat using two grades of wire
Rheostat for colour comparitor motor unit
Rheostat, G.P.O., 956
Rheostat by R.W. Paul
1893-1901
Varley carbon cloth rheostat
Wire wound rheostat with vernier device
Constant inductance rheostat
40 K carbon rheostat with skirted knob
Early filament rheostat, by F.L. Mitchell & Co.
Jervis square pattern rheostat
Rheostat labelled as:- "No.3 rheostat given by Faraday to Sir C. Wheatstone"
Lissen wire-wound rheostat c.1927
1927
Rheostat by Harvey & Peak
1883-1909
Rheostat, by Newton & Co., 3, Fleet St., London
Kelvin type rheostat in glass fronted wooden case
Rheostat for Arc Lamp
Rheostat for brushless variable speed spherical induction motor
Carbon plate rheostat by R.W. Paul, London
1893-1920
Wheatstone type rheostat, c.1880-1890
1880-1890
Rheostat by Birch
1950-1980
Varley's carbonised cloth rheostat by Townson & Mercer
1890-1939