finding a the right knob

[metamp]

I'm looking for a knob for a Marshall  effect pedal
I can't find it anywhere
does anybody know where I could a knob like this

Marshall support is not very helpful

[boogietube]

There might be something of use here:

http://www.beavisaudio.com/techpages/Knobs/knobs.htm

[Gurner]

I'd say to open up your options, think about putting your base 16 & 32 measuring implement to one side and consider base 10 instead.

Searching for an 18mm long knurled chrome knob would be a good starting point - however, the pot's diameter measurement is going to be key, so you might want to post up a piccie of that too.

[metamp]

I looked everywhere
I called Marshall and they told me it's discontinued item
no parts for this one anywhere
I may have to replace all 4 knobs

[Scruffie]

I think I have a spare one in a box somewhere I recall it snapped off one I had... any use?

[FUZZZZzzzz]

http://www.newtone-online.nl/catalog/product_info.php?cPath=30&products_id=399

the length is 18mm and the outside diameter also 18mm..
available in chrome and goldish

its a dutch store but all dutch speak english 

dunno if this is what you're looking for..

[metamp]

thanks for all your help
I still can't find the exact knob so if someone comes sees one or a broken Marshall effect pedal pls let me know