Apologies upfront. It was late at night and I was at least 51% joking around... 8D
> On May 17, 2021, at 4:18 AM, newxito <axta...@gmail.com> wrote: > > My knowledge about non-numeric nixies is very limited. I know the IN-19 > versions matching the IN-14 tubes and the IN-15 versions for the IN-12, > that's it. That's essentially it. It's my understanding that the IN-7x complements the IN-4 but I've never seen it done. And IIRC the IN-4 has no mercury so longevity is an issue. Everyone feel free to correct me. I'm only half awake right now. I'd really like to know what the IN-5x(-1) variants were used for. I get the impression that the glyphs are the first letters of Russian words like "hour" or something but that's just a guess. > I used IN-16 and IN-17 because they are only 13mm wide. I don't know if there > are +, -, E tubes that will fit. I'm sure there are non-Soviet tubes small enough for the +/-. Smaller would look OK. A small sideview "E" might be slightly trickier to find. > That's why I used a horizontal neon bulb for the minus sign. The reason why > the minus sign is now on the right is just a personal preference. A > non-floating minus sign on the left looked kind of strange. I hadn't thought about that. > Displaying results using scientific notation should be only a firmware > change. Instead of an E, a blank tube in between should do the job. The > decimal point of the blank tube could indicate a negative exponent. On my HP 35s it displays a diminutive capital "E" before the exponent. > Anyway, there are no plans to implement scientific notation, 14 digits are > good enough for my needs :-) If I run into it I know I probably hit the wrong button. I only have 12 visible digits. > Errors and over/underflows are indicated showing the 14 decimal points Another example of leveraging what you have. > I’m not sure, but I think making a RPN version should be just a firmware > thing and some keycap legend changes (Enter) Yeah, I could re-write the whole in FORTH. The "ENTER" key would have to be relocated and made wider. I'd also need √, 1/X, y^x, π, and a destructive backspace (delete). This turned out to be useful discussion after all. All blue-sky on my part but fun. Terry Bowman, KA4HJH "The Mac Doctor" https://www.astarcloseup.com “...the book said something astonishing, a very big thought. The stars, it said, were suns but very far away. The Sun was a star but close up.”—Carl Sagan, "The Backbone Of Night", Cosmos, 1980 -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/BA838C10-0328-4C1B-BED3-3E59D70C7F98%40gmail.com.
