I was in the middle of replying to a msg from Dave, but my m/c crashed
and I cannot find the original now (8-(#
A mention was made of a keyboard type with carbon pads onto a pcb and
ribbon cable tails. This is exactly what a UK Co (Keyboard Products)
used to make for the QL - it replaced the QL keys.
It certainly looked and felt good. I have seen a few of these and this
is an amalgam of the problems on them:
1) Keybounce. They produced a replacement 8749 to 'cure' this, which it
did. Unfortunately it killed ser2 (8-(# Hermes/superHermes have cured
key bounce with all keyboards using the pcb connectors.
2) The pcb was sub-standard, and the 'gold' plated contacts weren't.
After maybe 5 years, all the contacts need cleaning - quite a major
dis/re-assembly job
3) The ribbon cable was soldered each end, and fractured very easily
4) The thin pcbs weren't thin enough and ruined the connectors for std
membranes
Careful with your design (8-)#
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