Potentiometers, Trimmers & Rheostats

A potentiometer, trimmer, and rheostat are all three types of resistors that are adjustable. They are used to control the electric current by varying the resistance in the circuit. A potentiometer is an adjustable three-terminal resistor with a sliding contact (wiper) that moves across a resistive element to change resistance in a circuit. They are used in audio controls, light dimmers, and other applications that require adjustable resistance in the circuit. A trimmer is a miniature version of a potentiometer, and it’s used to make fine adjustments in electronics circuits. It can be used for voltage and current adjustments, and for tuning circuits for maximum performance. A rheostat is an adjustable two-terminal rotor, and it’s used to control the current in a circuit. It’s often used to control the speed of a motor or other electrical device.
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T73YB104KT20


Trimmer Resistors - Through Hole 1/4"SQ V/ADJ 100K
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Vishay 964
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AUD 1.87
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RV121F-10-009J-A14-00K


Potentiometers 12mm Audio 10K
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Alpha Taiwan 964
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AUD 1.9038
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RA6020F-10-15F2-B2K


Slide Potentiometers 60mm TRVL Linear 2K Solder Lugs
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Alpha Taiwan 964
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AUD 2.5769
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RS05-2115-0502


VARIABLE-MILITARY TRIMMER
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Honeywell 964
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AUD 7.3262
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2002111655


Potentiometers 0.5W 250V 4.7kOhm +/-20%
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Kyocera AVX 963
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AUD 0.4442
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68XR100K


Res Cermet Trimmer 100K Ohm 10% 0.5W(1/2W) 20(Elec)Turn 2.29mm (11.05 X 6.22 X 9.53mm) Pin Thru-Hole Box
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TT Electronics 963
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AUD 1.2623
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PTV112-3412A-B503


Potentiometers Dual Gang No Detent 12.5mm B Taper 503
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Bourns 963
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AUD 1.5662
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3269W-1-254GLF


Bourns Trimmer Resistors - SMD 14" 250Kohms 10% Vertical Adjust
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Bourns 963
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AUD 3.41
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RD901SF-20-15R1-B10K-00L1


Potentiometers 9mm Linear W/SW 10K PC Mount
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Alpha Taiwan 962
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AUD 3.6143
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R16148-1A-1-A50K


Potentiometer: shaft; single turn; 50kO; 63mW; ±20%; on cable; 6mm
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SR Passives 948
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AUD 0.286
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