[Coco] Coco KB membrane replacement

[RETRO Innovations]

On 5/14/2017 4:15 PM, Dave Philipsen wrote:
> This makes me think:  If I understand its operation correctly, there 
> are just two pieces of mylar with conductive traces and pads on each 
> side.  The pressure of the key causes a pad on one layer to connect 
> with pad on the other layer.  Why not design a PCB with some sort of 
> small domed cap or other conductive material which shorts a couple of 
> pads on the PCB, when pressed, at each key location?
I considered that, as one could very easily replace the mylar and the 
back metal frame with a circuit board.  But, can't find something that 
will press down that can easily be contained on top of each pad except 
for mylar.

JIm