“This source here” is wrong (as was pointed out in the comments below in 2014). It is just misquoting Wikipedia, which it links to: “In a Model M, the electrica

“This source here” is wrong (as was pointed out in the comments below in 2014). It is just misquoting Wikipedia, which it links to: “In a Model M, the electrical contact is a membrane sheet similar to that of a modern dome switch keyboard. On the older Model F design, a capacitive contact was used instead.” Go ahead and take a Model M apart. I guarantee you’ll find a membrane sheet.