Definitely old typewriter keys is what I was thinking. Glad someone had that kind of time.
On Sat, Jul 21, 2018, 5:28 PM Chuck McCown <[email protected]> wrote: > Had not thought of a circular array. Maybe I will use a rotary dial for > the number entry. > > Sent from my iPhone > > On Jul 21, 2018, at 3:02 PM, Bill Prince <[email protected]> wrote: > > Kind of like this? > <SteamPunkCalculator.jpg> > > bp > <part15sbs{at}gmail{dot}com> > > > On 7/21/2018 1:50 PM, Chuck Macenski wrote: > > Old silver and black typewriter keys. Think Enigma machine... > > On Sat, Jul 21, 2018 at 3:28 PM Chuck McCown <[email protected]> wrote: > >> I must be nuts. >> I am working on a calculator project that uses nixie tubes for a display. >> >> I want to use a telephone magneto to charge up a cap to run the thing. >> Kinda a steam punk RPN HP type of calculator. >> I am stuck on what to use for buttons. I am thinking elevator buttons. >> >> Large oak case. Just crank it for 10 seconds and then do your >> calculation. >> >> I am also conflicted as to how many buttons. >> Square and square root for sure. >> Undecided about log, trig functions and whether or not to have scientific >> notation. I think I will. >> How many digits to display? Probably 5. Engineering mode only. 3 dot 2 >> display. >> Also considering multiple lines to show 4 levels of the stack but I doubt >> I will actually do that. >> >> The question is: will I ever finish this thing? >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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