Alps spring over membrane
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 | |
| Manufacturer | Alps Electric |
|---|---|
| Sense method | Membrane |
| Keycap mount | Alps mount |
| Switch mount | Plate mount |
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Alps spring over membrane is a provisional name for an Alps membrane switch using discrete plate-mounted switches with Alps mount sliders. Each switch module contains two helical springs: a return spring for the slider, and a downward-facing contact spring that applies pressure to the membrane. The latter is likely to permit mid-travel actuation.
The switch is probably linear or progressive rate, and non-clicky.
It appears that Alps moulded spring over membrane was the reduced cost successor.
Gallery
Top view onto the switch
Bottom of the switch
Keyboards
- Some C.ITOH keyboards[1]
