deskthority

I recently acquired a vintage Sony M35 computer that I know nothing about (yet). Strangely enough, it has a mix of key switches (which is not normal, right?).
The Fx function keys are Omron B3G-S switches.
The interesting switch is the main keyboard keys that looks quite cheap and plasticy but the key switches actually felt prettygood. When I took a picture, I saw the internal spring below the key stem. Looks to be an internal coil but I would guess this is over dome?. Does anyone know what kind of key switch this might be?
This computer needs a serious cleaning and I'm not yet sure how to take it apart but that WILL happen shortly. Just wondering if anyone has seen these key switches before.

It's probably spring over membrane. Not sure what mechanism, though.

ohaimark wrote: It's probably spring over membrane. Not sure what mechanism, though.

It may be hard to see from the picture but it looks like a conical spring because you can see the spring from the gaps in the sides of the key stem as well. Looks to be wide side up to narrow side down; sort of like an upside down Topre conical coil.

Topre and Prototopre keyboards are the devil's work; they simply feel to good according to some people.

SoDoM = Spring over Dome over Membrane = SIN!

On a more serious note, snuci is right. Looks coil-ish at second glance... Not sure if there's a dome though. Show us more!

Just to circle back, I posted pics at this thread: photos-f62/sony-m35-laptop-omron-key-sw ... ml#p286126

It's an Omron key switch spring over membrane.