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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PTL20-10G0-103B2


Bourns Slide Potentiometers 10Kohms Travel=20mm
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Bourns 161
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AUD 1.4015
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3296W-1-100


Trimmer Resistors - Through Hole 3/8" 10ohms Sealed Vertical Adjust
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Bourns 161
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AUD 2.9388
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PTR902-2020K-A203


Potentiometers 20K AUDIO
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Bourns 161
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AUD 3.2672
Multiples of: 1

3299P-1-500LF


Trimmer Resistors - Through Hole 50ohms Standoffs Horizontal Adjust
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Bourns 161
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AUD 3.3077
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RK097111TZ17


ALPS Potentiometers 100 KOhms 30%
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ALPS 161
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AUD 3.5463
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P232-DEC20BR10K


P232-DEC20BR10K
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TT Electronics 161
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AUD 10.3825
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3386X-1-201LF


Bourns Trimmer Resistors - Through Hole 38" 200ohms 10% 0.5Watts Square
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Bourns 157
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AUD 1.1837
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H-92-1


Potentiometer Tools & Hardware ADJUSTMENT TOOL
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Bourns 155
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AUD 4.6299
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SM-42X502


Trimmer Resistors - SMD 5 KW 5mm SMD 11 turn, Gull-wing, top-adjustment
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Nidec Copal 141
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AUD 3.2343
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95A1A-B28-A15L


10k Ohm 1 Gang Linear Panel Mount Potentiometer None 1.0 Kierros Cermet 2W Solder Lug
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Bourns 133
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AUD 8.9642
Multiples of: 1

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