- Pusbuttons like these can be found in many stores.
I got a whole lot from old equipment that I have taken apart.
VCRs have quite a few mounted on their faceplace. You could also
- You will need 40 pushbuttons like these, possibly
all the same type and manufacturer so that the "feel"
is the same for each key. I used one extra button connected to
the RESET pin and hidden next to the "0" key.
- (Only accessible through a pin hole)