Best HP Financial Calculator - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: General Forum (/forum-4.html) +--- Thread: Best HP Financial Calculator (/thread-3412.html) |
RE: Best HP Financial Calculator - Csaba Tizedes - 05-06-2015 09:04 PM Beginning I do not really like the 12C, but since I wrote my SOLVE(I) for my 12C I don't want to use any other calc. BUT: 30B: the fastest calc I ever used and it have all important probability and inverse function and of course trigs - but how can I write a program for any statistical data collection without SIGMA+/- keys? Why no stopwatch (is it possible to install quartz and firmware just ONLY time functions and (stop)watch???). Why no 16kB RAM??? 17BII: Excellent calculator, excellent SOLVE - why I feel something missing when I grab it into my hand??? 10BII+: My first OMG: Brillant calc, why not programmable...? (OK: no more place on keypad...) 12CP: Err..., enough memory, faster than 12C..., why this color scheme and that LCD and keys... Grrr...! So: the classic 12C is the best... RE: Best HP Financial Calculator - Marcus von Cube - 05-09-2015 11:52 AM (05-06-2015 09:04 PM)Csaba Tizedes Wrote: 30B: ... Why no stopwatch (is it possible to install quartz and firmware just ONLY time functions and (stop)watch???). Why no 16kB RAM??? The hardware for a stopwatch and a RTC is there as was proven by the WP 34S design team. Obviously there is no firmware support in the 30b for these functions. The Atmel SOC just has 2KB of non volatile RAM built in. There is no external bus to add more. So we are stuck with the hardware here. RE: Best HP Financial Calculator - TASP - 05-09-2015 01:05 PM I'll voice a little surprise no one has come forward with an HP41 that they have personally customized for their own financial calculator needs. And love it above all others . . . RE: Best HP Financial Calculator - Massimo Gnerucci - 05-09-2015 02:32 PM (05-09-2015 01:05 PM)TASP Wrote: I'll voice a little surprise no one has come forward with an HP41 that they have personally customized for their own financial calculator needs. What about GMAC financing modules? RE: Best HP Financial Calculator - Csaba Tizedes - 05-09-2015 08:58 PM (05-09-2015 11:52 AM)Marcus von Cube Wrote: The hardware for a stopwatch and a RTC is there as was proven by the WP 34S design team. Obviously there is no firmware support in the 30b for these functions.I just want a stopwatch function only, I need the original firmware because I want to keep my 30B but I really like to use my calc as a stopwatch, too. Is it possible after installing a quartz into motherboard? RE: Best HP Financial Calculator - Marcus von Cube - 05-09-2015 10:39 PM (05-09-2015 08:58 PM)Csaba Tizedes Wrote: I just want a stopwatch function only, I need the original firmware because I want to keep my 30B but I really like to use my calc as a stopwatch, too. Is it possible after installing a quartz into motherboard? No, it's not. The original 30b firmware does not have a stopwatch function. RE: Best HP Financial Calculator - RayLuca - 05-14-2015 10:52 AM (03-18-2015 08:51 PM)Blendama Wrote: Someone commented on the 19Bii's battery door. The Problem with the Batterydoor on the side is, it will break, if not today, then tomorrow, the Battery "push" from the inside, I had 2, both "new" and the Door broken on there own without touching them ;( the Programms are lost. I use now the Battery Back Door HP19bii and it's perfect. RE: Best HP Financial Calculator - Thomas Radtke - 05-14-2015 11:46 AM (05-14-2015 10:52 AM)RayLuca Wrote: The Problem with the Batterydoor on the side is, it will break, if not today, then tomorrow [...]The oldest of my two clamshells is about 30yo. Both with intact battery compartements. I got a spare battery door from TAS before learned that often not only the door breaks, but also the housing . Otherwise new doors could be printed to solve that problem I guess. However, I'm convinced there are some samples being more robust than others. My 18C's door should have broken long before as I was quite harsh in handling it in the first few years. RE: Best HP Financial Calculator - RayLuca - 05-14-2015 12:16 PM I guess. However, I'm convinced there are some samples being more robust than others. [/quote] Ok, agree with you RE: Best HP Financial Calculator - emece67 - 05-14-2015 04:52 PM I remember that the 28C I bought when it was just released back in 1986, although having the battery side cover, did not show the broken port problem. The cells pushed the door very lightly. I used it for years and, finally, sold it ten years later with the door in perfect condition. Lately I bought a NOS 28S. The door broke the very first time I closed it with the cells in place, they were exerting a BIG pressure on the door. Somebody "enhanced" a working design. |