A
Anonymous
Apr 09, 2026
Rating: 5/5
Exactly as described
33mm is the right size for my vintage repair project. Highly recommend.
Description
33×19mm Plastic Knob for Tube Amplifier, Audio Potentiometer Switch Cap, Guitar Volume Control Knob with Round Shaft
Reviews
Attributes
| Brand | - |
| Category | Musical Instrument Accessories / Guitar Electronic Accessories |
| Origin | - |
| Material | ABS Plastic |
| Outer Diameter | 33 mm |
| Height | 19 mm |
| Shaft Diameter | 6.35 mm (1/4 inch) |
| Shaft Type | Split Shaft |
| Color | Black |
| Weight | 15 grams |
| Finish | Matte Textured |
| Compatibility | Potentiometers, Amplifiers |
| Package Count | 2 Pieces |
5 reviews
A
Anonymous
Mar 22, 2026
Rating: 5/5
Perfect fit for my amp
Great quality plastic, fits snugly on the pot. Very satisfied with this purchase.
A
Anonymous
Mar 11, 2026
Rating: 4/5
Good value
Looks nice, slightly lighter than expected but works well for the price.
A
Anonymous
Mar 01, 2026
Rating: 5/5
Solid knob
Good grip, doesn't slip when turning volume up during live performances.
A
Anonymous
Feb 01, 2026
Rating: 4/5
Nice upgrade
Replaced old metal knobs with these, very happy with the look and feel.
5 FAQ
Q: What is the inner diameter?
A: The shaft fit is designed for 6.35mm (1/4 inch) shafts.
Q: Will this fit a CTS potentiometer?
A: Yes, it fits standard 6.35mm shafts commonly found on CTS pots.
Q: Is this sold as a single knob?
A: No, the package includes 2 pieces per order.
Q: Is the plastic durable?
A: Yes, it is made from high-quality ABS plastic designed for long-term use.
Q: Can I use this for a bass guitar?
A: Yes, it works for any instrument with compatible potentiometer shafts.
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