A Big database for small calculators. Last database update : 04-21-2014 Home Presentation Database How to ... Gallery Links Thanks Updates Changer de langue		Pictures Model Aka Version Intro date End date Type Last update Progr RAM ROM Nb functions Alpha Nb keys Display type Display Graph XY Ext Print Sav Clock             Microprocessor                                     Functions                         Size Weight Batteries Ext power Power Twin Made in Link(s)                                                 Remarks                                                    HTH / Detron see also Detron Pictures Model Aka Version Intro date End date Type Last update Progr RAM ROM Nb functions Alpha Nb keys Display type Display Graph XY Ext Print Sav Clock             Microprocessor                                     Functions                         Size Weight Batteries Ext power Power Twin Made in Link(s)                                                 Remarks                                                 830D electronic calculator 1 ~1976   4 funct 2010_04_04 N 0   10 N 23 VFD 8 1/2 N N N N N   +/- % Pi x^2 1/x Sqrt 117x74x18   1xAA Y         C/CE key 830D electronic calculator HTH 2 ~1976   4 funct 2010_04_04 N 0   10 N 23 VFD 8 1/2 N N N N N   +/- % Pi x^2 1/x Sqrt 117x74x18   1xAA Y         C/CE key 830D electronic calculator HTH 3 <=1977 >=1977 4 funct 2013_04_16 N 0   10 N 23 VFD 8 1/2 N N N N N Hitachi: HD37330 +/- % Pi x^2 1/x Sqrt 117x74x18   1xAA Y         C key 830MD electronic calculator HTH 1 ~1977   4 funct 2010_04_04 N 1   6+4mem N 23 VFD 8 1/2 N N N N N   % Sqrt M+ M- RM CM 117x74x18   1xAA Y           830MD HTH 2 ~1977   4 funct 2010_04_04 N 1   6+4mem N 23 VFD 8 1/2 N N N N N   % Sqrt M+ M- RM CM 117x74x18   1xAA Y     Korea     unknown model     <=1977 >=1977 4 funct 2010_04_04 N 1   7+3mem N 23 VFD 8 1/2 N N N N N Hitachi: HD37350 Sqrt % X^Y M+ M- RM 117x74x18   1xAA Y

Copyright : all the pictures are my property. You can copy and save them but strictly for your own purpose. You are not authorized to modify, diffuse or use them (even partially) for another internet site, or for all other puplic diffusion. You are authorized to create links to MyCalcDB site, but I cannot garantee their reliability in the time. What I can garantee (exept errors) is only the database calculator's id number (for example: id=777 for the HP-55).