Locked SY-41CL back to life

[mfleming]

I've seen the same problem with a pair of calculators I'm trying to restore (41C & 41CV). Both had damaged flex circuits which I replaced, but both are still overly sensitive to applied pressure. The 41C has the early wound gold wire contacts while the other has the solid foam style of contact.

I've seen a description by someone who soldered 28 gauge wire between CPU board contacts and keyboard contacts, but I haven't seen any other suggested solutions. Does anyone know of a source for the vertically conductive strips, or can suggest some sort of low profile socketed connectors?

With 3D printing getting more available I wonder if some sort of snap-on connector could be fabricated?

Frustrating to have such a calculator almost working...
~Mark