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geekhack Community => Keyboards => Topic started by: Blaise170 on Fri, 22 May 2015, 23:09:35

Title: Is this a slider/dome or a different switch type?
Post by: Blaise170 on Fri, 22 May 2015, 23:09:35

(http://i.imgur.com/r5OFfpA.png)

Got this the other day. Has a spring underneath the keycap. Looks like it is probably a cheap slider over rubber dome but it doesn't feel bad to type on.

Title: Re: Is this a slider/dome or a different switch type?
Post by: SamFlynn on Sat, 23 May 2015, 00:39:11

I wonder where that keyboard has been, yuk...oh you were asking about a switch type: I say yes, it is definitely a place where a key goes, my money is on membrane...any other pictures?

Title: Re: Is this a slider/dome or a different switch type?
Post by: nubbinator on Sat, 23 May 2015, 00:42:24

Rubber dome.

Title: Re: Is this a slider/dome or a different switch type?
Post by: Findecanor on Sat, 23 May 2015, 01:14:29

That is most probably a Key Tronic foam and foil (http://deskthority.net/wiki/Key_Tronic_foam_and_foil) switch.
If there is a model number and it starts with an E and then four or eight digits then it is definitely a Key Tronic keyboard.

They are capacitative so they should have n-key rollover. The foam discs have sometimes deteriorated too much in older keyboards so that they no longer work - but there are ways to make new foam discs at home, or buy from eBay.

Title: Re: Is this a slider/dome or a different switch type?
Post by: Blaise170 on Sat, 23 May 2015, 02:45:57

Quote from: Findecanor on Sat, 23 May 2015, 01:14:29

That is most probably a Key Tronic foam and foil (http://deskthority.net/wiki/Key_Tronic_foam_and_foil) switch.
If there is a model number and it starts with an E and then four or eight digits then it is definitely a Key Tronic keyboard.

They are capacitative so they should have n-key rollover. The foam discs have sometimes deteriorated too much in older keyboards so that they no longer work - but there are ways to make new foam discs at home, or buy from eBay.

Yep looks exactly the same to me. Keyboard is a Harris-Lanier 301-2100. The only other marking besides serial number is this one. F/N: ET3182A51-C