Clare-Pendar Series S890
Clare-Pendar Series S890 is a foam pad keyboard series.
Here are two foam and foil keyboards from 1982:
The first keyboard does not identify the OEM, and most of the slider assemblies are unbranded. At least one assembly however is a different design, and it is clearly branded “CP CLARE” and marked “ASM MEXICO”. The controller chip bears General Instrument branding.
The second keyboard, stamped “ASSEMBLED IN MEXICO” on the PCB, uses a variant of the unbranded switches from the first keyboard (the chief difference being the taller keystems). This keyboard is noted as being from General Instrument, rather than Clare/Pendar.