Slider knobs for CTA / CA amplifiers


A set of 3D resin printed slider knobs for all classic CTA and CA amplifiers

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An improved set of 3D printed slider knobs for all classic CTA and CA amplifiers.  The original knobs are no longer made.

We are now 3D printing these using resin which gives a much better surface finish and the white indicator is now a solid plastic insert rather than the paint used on the original

As these knobs have a slightly different finish to the original (because they are 3D printed) we supply them as a set of 5 (CTA) or 2 (CA) to create a matching set.

Please check that the plastic lever on the slide control is intact (pull off another knob to see what it’s supposed to look like) as you cannot fit a knob to a slider control with a broken lever.

For more information or questions use our contacts page (opens in new tab).

Additional information

Number of knobs

CA (2 knobs), CTA (5 knobs)


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