Skip to main content
Home / Other Components / CNC Machined Full Aluminum Volume Potentiometer Knob, Tube Amplifier Power Amp CD Player Volume Toothed Cap 38x25mm

Attributes

Brand -
Category Electronic Components Market / Other Components
Origin -
Material Full Aluminum Alloy
Manufacturing Process CNC Machined
Outer Diameter 38mm
Height 25mm
Shaft Fitment 6mm D-Shaft (Standard)
Design Style Toothed Grip Cap
Surface Finish Anodized Matte Black
Weight 45g
Compatibility Tube Amps, Power Amps, CD Players
Package Contents 1 x Volume Knob, 1 x Set Screw

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 4/5

Great knob, minor fit issue

The knob looks amazing and feels very solid. I had to slightly adjust the set screw tension, but once installed, it works flawlessly.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Precision engineering

You can tell this was made with high-quality CNC machines. No burrs, smooth edges, and the dimensions are exactly as advertised.

A

Anonymous

Mar 20, 2026

Rating: 5/5

Sleek and sturdy

I bought this for a custom audio project. The toothed design provides excellent grip, and the anodized finish matches my other components perfectly.

A

Anonymous

Mar 13, 2026

Rating: 5/5

High-end look without the price

Replaced the plastic knob on my CD player with this aluminum one. The difference in tactile feedback is night and day. Highly recommended.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Perfect upgrade for my vintage amp

The build quality is exceptional. The CNC machining is precise, and it fits perfectly on my 6mm shaft. It adds a premium feel to the volume control.

A

Anonymous

Mar 07, 2026

Rating: 4/5

Solid addition to my setup

Very happy with the purchase. It's heavier than expected which gives it a nice premium feel. Took one star off only because shipping took a bit long.

5 FAQ

Q: Is the set screw included in the package?

A: Yes, the package includes one volume knob and the necessary set screw for installation.

Q: What tools are needed to install this?

A: You typically only need a small Allen wrench (hex key) that fits the set screw, usually 1.5mm or 2mm depending on the specific screw provided.

Q: Can I use this on a potentiometer with a flat shaft?

A: This knob is designed for D-shaped shafts. While it might sit on a flat shaft, we recommend using a D-shaft pot for secure attachment and proper rotation.

Q: Is the black finish prone to scratching?

A: The knob features a hard-anodized finish which is quite durable and resistant to minor scratches, though care should still be taken during installation.

Q: Does this knob fit a 6.35mm shaft?

A: This specific model is designed for a standard 6mm D-shaft. For 6.35mm shafts, you would need an adapter or a different model.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Huirui 420AB Fast-Curing Silicone Adhesive - High-Strength Instant Glue for Bonding Silicone Metal Plastic and Velcro

Huirui 420AB Fast-Curing Silicone Adhesive - High-Strength Instant Glue for Bonding Silicone Metal Plastic and Velcro

$36.00

IGBT Module FP15R12KE3/FP25R12KE3/FS50R12KE3/FS75R12KE3

IGBT Module FP15R12KE3/FP25R12KE3/FS50R12KE3/FS75R12KE3

$250.00

3F UL Gear Ventilated Waterproof Dry Bag – Compressible Storage for Sleeping Bags, Clothes, and Swim Gear

3F UL Gear Ventilated Waterproof Dry Bag – Compressible Storage for Sleeping Bags, Clothes, and Swim Gear

$40.80

Martini 100% Cotton Watercolor Paper 200g/300g Thickened Art Sketch Paper 4K Drawing Paper

Martini 100% Cotton Watercolor Paper 200g/300g Thickened Art Sketch Paper 4K Drawing Paper

$12.00

Flameless Aromatherapy DIY Kit - Natural Crystal Diffuser Stones for Home Decor and Demagnetizing

Flameless Aromatherapy DIY Kit - Natural Crystal Diffuser Stones for Home Decor and Demagnetizing

$4.68

[Ali Health] Dental Implant Initial Consultation Package, Oral Cavity Filling, Crown, Denture, and Implant Assessment

[Ali Health] Dental Implant Initial Consultation Package, Oral Cavity Filling, Crown, Denture, and Implant Assessment

$7.90

3M Industrial Scouring Pad for Polishing, Cleaning, and Rust Removal - Bulk Factory Supply with Aluminum Oxide

3M Industrial Scouring Pad for Polishing, Cleaning, and Rust Removal - Bulk Factory Supply with Aluminum Oxide

$7.20

Bull Socket Storage Box - Multi-Outlet Power Strip with Cord, Home Multifunctional Desktop Cable Organizer, Power Junction Board

Bull Socket Storage Box - Multi-Outlet Power Strip with Cord, Home Multifunctional Desktop Cable Organizer, Power Junction Board

$85.90

Used Car Tires 80-90% New, Sizes 165/185/195/205/215/235/60/70/75 R13/R14/R15

Used Car Tires 80-90% New, Sizes 165/185/195/205/215/235/60/70/75 R13/R14/R15

$65.00

BBP Angular Contact Ball Bearings 7000 7001 7002 7003 7004 7005 7006-E-J

BBP Angular Contact Ball Bearings 7000 7001 7002 7003 7004 7005 7006-E-J

$14.08

Baby Rattle with Teether for 0-1 Year Olds; Ideal Gift for Children's Day

Baby Rattle with Teether for 0-1 Year Olds; Ideal Gift for Children's Day

$14.80

Meiyike Granular Sheep Manure Fertilizer, Fermented and Composted for Vegetables and Flowers, Home Potted Plants, Garden Soil Activator

Meiyike Granular Sheep Manure Fertilizer, Fermented and Composted for Vegetables and Flowers, Home Potted Plants, Garden Soil Activator

$37.54

Face Towel Storage Box Wall-Mounted Bathroom Tissue Holder

Face Towel Storage Box Wall-Mounted Bathroom Tissue Holder

$2.98

Baby Rattle Toy - Chewable Wooden Handheld Drum with Sheepskin, Traditional Newborn Toy for Boys and Girls

Baby Rattle Toy - Chewable Wooden Handheld Drum with Sheepskin, Traditional Newborn Toy for Boys and Girls

$13.00

Mineral Water Bucket Inverted Stand 6L Bottle Pump Dispenser Manual Pressure Water Extractor for Water Coolers

Mineral Water Bucket Inverted Stand 6L Bottle Pump Dispenser Manual Pressure Water Extractor for Water Coolers

$2.09

Marie's Sketch Blending Stumps & Makeup Sponges – Professional Art Supplies for Students

Marie's Sketch Blending Stumps & Makeup Sponges – Professional Art Supplies for Students

$6.06

Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Hot Pot and BBQ Odor Removal

Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Hot Pot and BBQ Odor Removal

$39.00

Wen Zhengming Small Regular Script: Three Versions of Thousand Character Classic, Two Versions of Red Cliff Ode, Close-Up Copying Cards, Wen Zhengming Calligraphy Model Book

Wen Zhengming Small Regular Script: Three Versions of Thousand Character Classic, Two Versions of Red Cliff Ode, Close-Up Copying Cards, Wen Zhengming Calligraphy Model Book

$10.00

Custom Name Stamp, Personalized Seal, Photo-Sensitive Signature Stamp

Custom Name Stamp, Personalized Seal, Photo-Sensitive Signature Stamp

$7.04

Variable Frequency Drive Accessory RMIO Flat Cable for ACS800

Variable Frequency Drive Accessory RMIO Flat Cable for ACS800

$120.00

Qimeng Island WAKUKU 'Start Cheating Now' Series Blind Box, Celebrity Style Plush Toy

Qimeng Island WAKUKU 'Start Cheating Now' Series Blind Box, Celebrity Style Plush Toy

$69.00

Orthodontic Invisible Aligner Case Retainer Storage Box Teeth Corrector Denture Compact Portable Cleaning Box

Orthodontic Invisible Aligner Case Retainer Storage Box Teeth Corrector Denture Compact Portable Cleaning Box

$12.30

Sentury 990 Silent Tire - Sizes 185/195/205/215/225/50/55/60/65 R16/R17/R18/R19

Sentury 990 Silent Tire - Sizes 185/195/205/215/225/50/55/60/65 R16/R17/R18/R19

$342.00

Adult Outdoor Rafting Gear – Large PVC Mesh Waterproof Dry Bag for Swimming and River Trekking

Adult Outdoor Rafting Gear – Large PVC Mesh Waterproof Dry Bag for Swimming and River Trekking

$7.26

Universal Reading Pen Storage Rack – Compatible with Xiao Ji Qiu Qiu, Tun Xiao Meng, Caterpillar, and JOJO Reading Pens

Universal Reading Pen Storage Rack – Compatible with Xiao Ji Qiu Qiu, Tun Xiao Meng, Caterpillar, and JOJO Reading Pens

$10.80

[Daimai Holds Micro-Needle Hair Transplant Patent] Micro-Needle Artistic Hairline Planting, 3000 Grafts for Hair Loss Treatment

[Daimai Holds Micro-Needle Hair Transplant Patent] Micro-Needle Artistic Hairline Planting, 3000 Grafts for Hair Loss Treatment

$71,950.00

PELICAN Air 1535 Lightweight Protective Case, Waterproof Photography Gear Carry-On Luggage with Free Shipping

PELICAN Air 1535 Lightweight Protective Case, Waterproof Photography Gear Carry-On Luggage with Free Shipping

$219.00

Beginner Calligraphy Set: Tian Yingzhang Ou Style Kaishu Copybook, Xuan Paper, and Red-Guided Practice Kit

Beginner Calligraphy Set: Tian Yingzhang Ou Style Kaishu Copybook, Xuan Paper, and Red-Guided Practice Kit

$9.90

Three-Phase AC Permanent Magnet Synchronous Motor 15KW 380V Variable Frequency

Three-Phase AC Permanent Magnet Synchronous Motor 15KW 380V Variable Frequency

$3,493.00

Genuine OEM Car Tires for Pickups, SUVs, and Vans - Sizes 145, 155, 165, 175, 185, 195 R12

Genuine OEM Car Tires for Pickups, SUVs, and Vans - Sizes 145, 155, 165, 175, 185, 195 R12

$60.00