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Emerson Pro CTS 500K Long (3/4″) Split Shaft Potentiometer

SKU: 210000002907
Emerson Custom

These Emerson Pro CTS have been designed to be the best choice for the demanding guitarist who is looking for the optimum performance and tonal response of a guitar potentiometer. With a longer shaft and bronze bushing, they also have a more tight resistance tolerance of ± 8% compared to the CTS products offered by other suppliers.

Each and every one of the Emerson Pro CTS is tested by hand to ensure that they meet or exceed our established tolerances.

Emerson Pro CTS have a custom audio cone that was specially designed by Emerson Custom to give you a very smooth and accurate response when you roll up and down the controls. You can have your guitar up to volume 10 without problems.


  • Low Torque (Easy turning – for quicker/easier Volume & Tone swells.
  • 1/4″ split shaft for fine-knurled (24-spline) US Spec knobs.
  • Typically used on Carved Top Les Pauls, but can be used on any guitar that requires a 500K Long Split Shaft Potentiometer.

Installation Instructions

Made to fit US spline push controls Spec. 24. Imported guitars will need new US specification controls.

It is recommended that you slightly bend the top of the potentiometer shaft so that when you press the knob, do not damage the shaft of the macerator by exerting too much downward pressure.


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