19 Apr
2011
19 Apr
'11
12:45 p.m.
On Mon, 18 Apr 2011, Tony Duell wrote:
HP46, or HP81, then I replaced a keyswithc on one for a fellow HPCC
member, and I am pretty sure I sued a Cherry keyswitch of the type I use
on my 9830). I susepct a 9805 is similar.
I don't want an adding machine - which essentially what those HP devices
I would not describe any of those machines as an 'adding machine' :-).
It's a pity HP never made a user-programmable machine in that casing (it
would have been possible to make a version of the 65 with an internal
printer, for example), ut they didn't. Oh well...
> You know, a big calculator that used Cherry
keyswitches would just kick
> ass. If you were to kit one, I'd be first in line. :)
Isn;'t that called an HP9830?
Nope. I wasn't implying a full size keyboard, just a keypad that used
full size keys. :) are. I was envisioning a hybrid "old style"
programmer's calculator that
used a huge keypad and a small LCD display of some kind. Think of the
HP-16C but with large keys on it.
OK, get a first-geenration HP16C, the one with the separate logic/display
module on the flexible PCB. Extract said module. Wire up a load of Cherry
keyswitchs in the appropritate matrix (schematic avaialble from HPCC).
Connect them to the flexiprint 'tail' of the module. Satisfied now?
-tony