[sdiy] Repair part question, Korg DDM-110/220 buttons

[Benjamin Tremblay]

Hi, I got me a Korg Super Drums off eBay.
It looks just like the one I had in 1985 before I went crazy with the soldering iron and circuit bent the clock.
It was DOA. I was about to give up on it when I noticed hairline cracks around one screw hole in the board. Was able to fix them and then it booted up properly.
But it still seemed dead. Until I almost accidentally closed one of the switch contacts with a tool, and it responded. (In fact it’s so snappy I could be lazy and trigger the switches with MIDI via 4066 ics and it would probably respond at a high speed.)

Looks like very fine hair and dust, like Persian cat dander, is coated around the knobs and switches. 
So anyway I found this link on polynomial showing how to crack the switches apart and clean them with a q-tip. I have some black goo I used to permanently fix an Alesis MMT-8 and so I intend to coat the rubber contacts with this good stuff.

But just wondering: Does anyone know what kind of switch this is? (See photo on polynomial Repair Blog). To me it looks too good to not be an Alps, but it’s not a keyboard switch, is it?
Whatever it is it’s kinda cool, as long as you don’t have cats.

It seems like a lot of these kinds of parts have vanished from the storage bins and there’s nothing that would take its place.

Ben