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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PTV111-1420A-A203


Potentiometers 20K AUDIO 20%
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Bourns 700
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AUD 1.1124
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RV112BCF-40-25A-A10K


Potentiometers 11mm Audio 10K Dual Unit-Vert PC MT
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Alpha Taiwan 700
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AUD 1.5557
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RV112BCF-40-25A-B10K


Potentiometers 11mm Linear 10K Dual Unit-Vert PC MT
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Alpha Taiwan 699
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AUD 1.5338
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3352T-1-254LF


Trimmer Resistors - Through Hole 3/8"round 250Kohms 0.5watt 20%
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Bourns 699
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AUD 2.4479
Multiples of: 1

PDB181-B225K-102B


Potentiometers PANEL CONTROL - 17MM-ST-CARBON
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Bourns 698
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AUD 1.0937
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PVG3G101C01R00


Trimmer Resistors - SMD 100 Ohm 20% 1/4W
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Bourns 698
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AUD 1.1827
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PDB241-GTR02-103A2


Potentiometers 0.25watt 10Kohms 20% Plain
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Bourns 694
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AUD 3.0366
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T7YA472MT20


Trimmer Potentiometer Turn
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Vishay 694
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AUD 3.9896
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PV36W503C01B00


Trimmer Resistors - Through Hole 50K 10%
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Bourns 679
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AUD 1.6024
Multiples of: 100

PTF01-152A-104B2


100 kOhms 0.5W, 1/2W Through Hole Slide Potentiometer Top Adjustment Type
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Bourns 338
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AUD 7.0312
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