Tony Duell wrote:
All I have to do is box it up. The new board will
have to go in a plastic
box screwed to the top of the keyboard. But I want to get things just
right before I start drilling holes.
Yick... if you have to screw it, can't it be on the back - or some form of
trailing cable so that a future owner can put things back to original should
they want to?
At least somebody reads my postings :-)
I thought long and hard about this. Putting it on the bottom is difficult,
since you don't want the keybaord tilted at a stupid angle. The back is
impossible, the back of the HP150 keyboard is a clip-on cable cover, so
it's not rigid enough to fix things to.
I really don't want a separate box either.
As it is, the modifications will only really be to the keyboard top case,
which is, IIRC, the same top case as is used on the HP46020 HP-HIL
keyboard, so it's not hat hard to find a spare. And these mods will
consist of cutting away some of the plastic (hidden by said clip-on
cover) to allow the ribbon cable to exit, and 4 3mm holes on top. These
could be filled and painted over, or used to attach a nameplate, or
something if you wanted to reverse the mod.
Reversing the electical modification, of course, is simply a matter of
unplugging a 14 pio DIL header from a socket on the keyboard PCB and
plugging a 4024 counter chip in place of it.
Anyway, I have 3 HP150 keybaords (one missing a keycap IIRC) and 2
HP150s, so I have enough bits to have an oriignal keyboard per machine if
I want to.
-tony