Knobs fit on controls, e.g. push buttons, potentiometers or sliders and rotary switches.

Use with potentiometers

 
Potentiometer knob with set screw.
 
Splined shaft on potentiometer.

Splined push on knobs fit splined pot shafts. Pots with with round or D shafts require knobs with plain holes that if not push fit, have set screws to hold them in place. Most spline shaft pots have a slightly smaller diameter shaft than round or D shaft. Usually splines are 6mm while most round ones are 1/4" (6.35mm). So 1/4" setscrew knobs will end up slightly lopsided when tightened onto a 6mm spline shaft. Knobs fastened by a collet require a box spanner to fasten them.[1][2]

Knobs in common use

Moog, Synthesizers.com, STG Soundlabs

The Moog style "fluted taper skirt" control knobs, also used by Roger Arrick at Synthesizers.com and STG Soundlabs are manufactured by Cosmo Corporation.[3]

EMS

The EMS VCS3 knobs were made by Cliff Components, part number CL1606. Available in two sizes, the cap insert was satin or shiny silver, or with any of nine colours. Cliff no longer produce the knobs with coloured inserts.[3]

Aries, Macbeth, Modcan B

Aries modulars used ridged knobs which these days are mainly used by Ken Macbeth and on Modcan B modules.[3]

MOTM

MOTM uses ALCO PKES90B1/4 knobs.

Buchla

Buchla synths use Rogan knobs, [4] and also Davies Molding knobs on 100 and 200 series modules.[5]

See also

References

  1. ^ knurled vs round shaft pots, Muff Wiggler forum, March 2012
  2. ^ Wikipedia: Control knob
  3. ^ a b c Control knobs, YuSynth
  4. ^ Rogan knobs group buy, Muff Wiggler forum, May 2011
  5. ^ Rogan Unskirted Knobs and Buchla Davies Knobs, Muff Wiggler forum, March 2013

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External links

Suppliers