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
Fielden Temperature Indicator
1960-1969
Potentiometer, for spontaneous polarisation measurements
1931
Foster Instrument Company potentiometer
1940
Vernier potentiometer type 4363 serial no. 72400
1946
Morganite 1 megohm linear potentiometer
Thermocouple Potentiometer (Electrical Resistance Meter), 1928
1928
Vernier potentiometer
1900-1918
Slide-wire potentiometer for industrial use
1893
Precision Potentiometer
Direct reading potentiometer
1900-1920
potentiometer
circa 1947
original "Earley" Pocket Calibrating Potentiometer
1971
Diesselhorst thermoelectric-free potentiometer
1956-1966
Precision Potentiometer
circa 1940s-circa 1950s
Precision Potentiometer
circa 1940s-circa 1950s
"Vernier" potentiometer (Thomson-Varley slides)
1889
Lewcos wirewound potentiometer 10 000 ohms
Feussner potentiometer No.478 by Otto Wolff
1890-1900
Wirewound potentiometer with swash plate contact
Single-wire potentiometer
Crompton 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
resistance potentiometer
1897
Original alternating current potentiometer
1920
Sullivan's potentiometer
10 Ohm wirewound potentiometer
Wavelength potentiometer
Elevator error potentiometer.
Colvern 2 gang wire wound potentiometer
Bruel & Kjaer logarithmic potentiometer ZR 0005 50dB 10mV - 3.16 V
Bruel & Kjaer linear potentiometer ZR 0002 10 - 110mV in wooden case
Lissen wire wound potentiometer
Tinsley & Co. potentiometer
1966
dielectrimeter
circa 1925
Early Crompton potentiometer
1900
Sator combined 10 K potentiometer
Colvern potentiometer with integral knob
High resistance wire - wound potentiometer
Bruel & Kjaer logarithmic potentiometer ZR 0004 25dB 10 - 180mV
Clarastat humdinger balancing potentiometer for reduction of hum
Doran DC Potentiometer (no.3512)
1953