Classic Keyboard Contact Strips

[Sanjeev Visvanatha]

I am researching a mushy key repair on a HP-67. From my reading, it sounds like one of the contact strips needs replacing. All of the internals of Classics I have seen show the contact strips intact (e.g. http://home.citycable.ch/pierrefleur/Jac...20Left.JPG)

I could not find any photos of what is hidden when a contact strip is removed. I am trying to see whether I can do this repair, or should I leave it for now.

Does anyone have, or can point me to, a photo of a keyboard assembly with the contact strip removed?

Also, seems like there are small spotwelds that hold the contact strip in place. Are these solely for mechanical joining, or for electrical contact (or both)?

Thank you!