Cambridge portable potentiometer
1957
Cambridge Instruments portable potentiometer
Potentiometric Recorder
1930-1960
Drysdale-Tinsley universal potentiometer
1910
Potentiometer, type 44228
1955-1964
Two-metre potentiometer complete with jockey and insulated flexible lead
1954-1974
Portable potentiometer no. L-150951 by the Cambridge Instrument Co. Ltd
1940-1959
Potentiometer, for spontaneous polarisation measurements
1931
Foster Instrument Company potentiometer
1940
Fielden Temperature Indicator
1960-1969
Morganite 1 megohm linear potentiometer
Thermocouple Potentiometer (Electrical Resistance Meter), 1928
1928
Vernier potentiometer type 4363 serial no. 72400
1946
Vernier potentiometer
1900-1918
Slide-wire potentiometer for industrial use
1893
Precision Potentiometer
Direct reading potentiometer
1900-1920
Lewcos wirewound potentiometer 10 000 ohms
original "Earley" Pocket Calibrating Potentiometer
1971
Diesselhorst thermoelectric-free potentiometer
1956-1966
potentiometer
circa 1947
Single-wire potentiometer
Precision Potentiometer
circa 1940s-circa 1950s
Precision Potentiometer
circa 1940s-circa 1950s
"Vernier" potentiometer (Thomson-Varley slides)
1889
Feussner potentiometer No.478 by Otto Wolff
1890-1900
Wirewound potentiometer with swash plate contact
Crompton potentiometer
Early Crompton potentiometer
1900
10 Ohm wirewound potentiometer
Controlling Potentiometer
Universal Precision Potentiometer, for measuring temperature of thermocouple in microscope cell
1963
Deflection potentiometer no.L-270305 by the Cambridge Instrument Co. Ltd.
1950-1959
Original alternating current potentiometer
1920
resistance potentiometer
1897
Lissen wire wound potentiometer
Wavelength potentiometer
Sullivan's potentiometer
Elevator error potentiometer.
Colvern 2 gang wire wound potentiometer
Tinsley & Co. potentiometer
1966
dielectrimeter
circa 1925
Bruel & Kjaer logarithmic potentiometer ZR 0005 50dB 10mV - 3.16 V
Bruel & Kjaer linear potentiometer ZR 0002 10 - 110mV in wooden case
Clarastat humdinger balancing potentiometer for reduction of hum
Doran DC Potentiometer (no.3512)
1953
Sator combined 10 K potentiometer
Colvern potentiometer with integral knob
High resistance wire - wound potentiometer
Tinsley & Co. ESM potentiometer
circa 1953