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A10K Alpha 16mm Logarithmic Potentiometer PC-Mount w/FREE Dust Seal - US Seller! Go to product viewer dialog for this item.

Best for volume control. Humans hear sound logarithmically, so these feel "natural" when turning up music. Common labels: A10K , A250K . 2. Select Your Style buy potentiometer

Adafruit Industries Panel Mount 10K Log Potentiometer with On-Off Switch Adafruit Industries Go to product viewer dialog for this item. buy potentiometer

Best for lights, fans, or sensors. Halfway turned equals 50% resistance. Common labels: B10K , B50K . buy potentiometer

10K Ohm is the standard for most hobby electronics. Use 250K or 500K for electric guitar tone/volume.