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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RV170SF-10-20K-A5K-0021


Potentiometers Audio W/SW Knurled 5K Solder Lugs
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Alpha Taiwan 1006
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AUD 2.0429
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PTL20-10O0-103B2


Slide Potentiometers 10Kohms Travel=20mm
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Bourns 1005
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AUD 2.0603
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M64W204KB40


200 kOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 21.0 Turn Top Adjustment
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Vishay 1004
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AUD 2.5967
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PTV09A-2020S-B104


Potentiometers PANEL CONTROL - 9MM-ST-CARBON 100 kohms 20 mm
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Bourns 1002
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AUD 0.7665
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67YR2KLFTB


BI Technologies TT Electronics Trimmer Resistors - Through Hole 12W 2K Ohms 10% MULTI TURN
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TT Electronics 1002
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AUD 1.4702
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PTA6043-2010CIB502


Slide Potentiometers 5K LINEAR
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Bourns 1002
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AUD 1.7373
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PTV09A-4030F-A102


Bourns Potentiometers PANEL CONTROL 9MM-ST-CARBON
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Bourns 1001
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AUD 0.7665
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PDB181-E415P-104A2


Potentiometers PANEL CONTROL 17MM-ST-CARBON
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Bourns 1001
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AUD 1.1279
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PT15LH06-204A2020


Trimmer Resistors - Through Hole 200Kohms 15mm Rnd
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Amphenol 999
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AUD 0.7635
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PT6KV-102A2020


Trimmer Resistors - Through Hole 1Kohms 6mm Rnd Top adj
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Amphenol 968
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AUD 0.38
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