Hello all,
I'm looking for a high quality flexible interconnet system, like used in old HP41 calculators. In the calculators it was used to connect the keyboard and LCD to the processor board. It was in-between the 2 boards and pressed a little bit together, and so the pads on both boards, that had a larger spacing than the stripes on the interconnect foam where connected. This works still after about 40 years.
It looks like a flexible PCB with gold plated conductor strips, placed on a flexible material may be silicone foam. Does somebody have an idea, where to bye this kind of flexible interconnect system or was this custom produced for HP? Any hint is welcome.
Guido