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Home / Guitar Electronic Accessories / 2012mm Plastic Knob for Tube Amplifier Audio Potentiometer Switch Cap and Guitar Volume Round Knob

Attributes

Brand -
Category Musical Instrument Accessories / Guitar Electronic Accessories
Origin -
Material High-Grade Plastic
Outer Diameter 20 mm
Total Height 12 mm
Shaft Fitment 6 mm Round Shaft
Color Matte Black
Weight per Unit 4.5 grams
Package Quantity 2 Pack
Surface Texture Knurled Grip
Compatible Devices Amplifiers, Mixers, Guitars
Manufacturer AudioParts Co.

5 reviews

A

Anonymous

Apr 20, 2026

Rating: 5/5

Solid replacement knobs

These fit my old Fender amp perfectly. The plastic feels sturdy and not cheap.

A

Anonymous

Mar 14, 2026

Rating: 4/5

Good but tight

Quality is good. They were a bit hard to push on initially but settled in nicely.

A

Anonymous

Mar 11, 2026

Rating: 5/5

Classic look

Looks vintage on my tube recorder. Very happy with the aesthetic and function.

A

Anonymous

Feb 03, 2026

Rating: 3/5

Okay for the price

They work fine but the finish scratches easily if you handle them too much.

A

Anonymous

Feb 02, 2026

Rating: 5/5

Exactly what I needed

Measured my shafts and these 20mm knobs are spot on. Great for DIY projects.

5 FAQ

Q: Can these handle high heat from tube amps?

A: They are standard plastic suitable for normal equipment surface temperatures.

Q: Do you offer bulk discounts?

A: Please contact us directly for orders exceeding 50 units.

Q: What is the inner hole diameter?

A: The inner bore is sized to fit a 6mm shaft snugly.

Q: Are these sold individually or in pairs?

A: This listing is for a pack of 2 knobs.

Q: Does this fit a split shaft potentiometer?

A: These are designed for solid round shafts only.

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