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Metal Cap Marshall Style Guitar Amplifier Control Knob

Metal Cap Marshall Style Guitar Amplifier Control Knob

A rotary control knob in the style of Marshall amplifier control knobs. These distinctive knobs feature a coloured metal cap that extends around the side of the top of the knob, and a position indicator on the top. The knob has a slight curved taper towards the top in the classic style and is ridged for a better grip when turning. They have a strong brass insert for shaft fixing.
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Quantity Unit Price
1+ £1.2
2+ £1.08
5+ £1.02
10+ £0.96
20+ £0.9
50+ £0.84
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Fitting

Knob TypeRotary
Shaft TypeRound
Shaft FixingGrub Screw
Hole Size6.4mm

Appearance

Identity ColourGold
Body ColourBlack
Accent ColourGold
Position Indicator ColourBlack
Position Indicator ShapeLine

Measurements

Minimum Shaft Depth9.0mm
Maximum Shaft Depth13.9mm
Body Diameter19.7mm
Maximum Diameter19.7mm
Widthmm
Lengthmm
Height15.9mm
Additional MeasurementsMetal Cap Diameter: 16.0mm
Unit Weight5.55g
Metal Cap Marshall Style Guitar Amplifier Control Knob

Hole Type

Round Hole

A knob designed for a round shaft has a smooth, cylindrical hole that matches the shaft's shape. This type of hole allows the knob to slide easily onto the shaft, relying on a grub screw / set screw or friction to keep it in place. This design is widely used in audio equipment, consumer electronics, and control panels due to its simplicity and versatility

A knob with a round hole can typically also be used on a D type shaft in the 180° position (where the position indicator is opposite to the flat of the D) and can often also be mouned to splined shafts in low torque applications.

A View from the underside of the knob when fitting a round hole knob to a D shaft, showing the grub screw position relative to the position indicator:

Measuring Rotary Knobs

Read more about measuring rotary knobs here.