Hello everyone. I came a cross a beautiful MD MKii with two broken audio jacks. I created a support ticket on Elektron’s site but no answer just yet. I would ultimately want to replace every jack while I’m at it, and have not had any luck tracking down the actual part numbers to these or where to actually get them from here in the US. The ultimate thing would be purchasing an audio IO card for the machine; which I can install myself. Any info helps. Thanks everyone! 
Do you have any photos of the jacks?
I will once I head back home tonight, thanks for the help! 
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I’m in the same boat, I need to replace three 1/4" jacks on my Machinedrum MK1. Haven’t heard back from Elektron yet but it’s only been a couple of days.
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Reviving this thread to ask if anyone had any luck with locating the right replacement jacks? Old plastic and careless previous owners made jack(s) a dull boy
Elektron support send me 8 of those 2 years ago. You should contact them if you haven’t already
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Thanks Cemat! I did, and they were super helpful. Shipping prices make it a bit prohibitive though.
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They can at least provide the part numbers so you can nab them from Digikey/Mouser/vendor of choice. The potentiometers and audio jacks they use are not custom and widely produced.
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