Black Knob - 15x19mm

Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft with a set screw.

  • 15mm high
  • 19mm diameter

Black Knob - 15x19mm Product Help and Resources

Rotary Switch Potentiometer Hookup Guide

April 30, 2015

How to use the Rotary Switch Potentiometer breakout board, with some sample applications.

Decade Resistance Box Hookup Guide

December 4, 2014

How to assemble the decade resistance box, then use it as a design and measurement tool.

Noisy Cricket Stereo Amplifier - 1.5W Hookup Guide

April 26, 2018

A hookup guide for the Noisy Cricket Stereo Amplifier - 1.5W.

Proto Pedal Example: Programmable Digital Pedal

September 22, 2016

Building a pedal around the Teensy 3.2 and Teensy Audio shield. Changing the effect in the pedal is as easy as uploading a new sketch!

Core Skill: DIY

Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.


Skill Level: Noob - Basic assembly is required. You may need to provide your own basic tools like a screwdriver, hammer or scissors. Power tools or custom parts are not required. Instructions will be included and easy to follow. Sewing may be required, but only with included patterns.
See all skill levels


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • dearmash / about 13 years ago / 1

    Those set screws are pretty sneaky. Good because once they're on, they're basically invisible. Bad because initially trying to put them on, they're invisible ;)
    They work very well with the rotary encoder that's offered here. Much better than the other knob I purchased which fit very poorly, hindsight >= 20/20.
    The size of wrench I got to work was a H1.5, but I wasn't super scientific about it. Also when putting it onto the rotary encoder above, be mindful of the depth. If you put it on all the way, you don't get any room for the push button action. So go all the way & back it up 0.5mm (tiny) so you can use as a PB, or don't, I really don't care.

  • Member #164321 / about 13 years ago / 1

    Does anybody know the size of allen wrench needed for the set screw?

  • jbrandmeyer / about 13 years ago / 1

    Does this knob have an isolation voltage rating? I want to know if it would be safe to use this knob on an encoder that is not SELV. The isolation rating of COM-09117 is only 50V.

  • Member #116968 / about 14 years ago / 1

    These don't come with the screw needed to tighten each to the pot shaft.

    • They should. If yours didn't you might want to contact But it should come with the set screw.

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