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A Big database for small calculators.

Last database update :
04-21-2014


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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                                                
830Delectronic calculator1~1976 4 funct2010_04_04N0 10N23VFD8 1/2NNNNN +/- % Pi x^2 1/x Sqrt 117x74x18 1xAAY    C/CE key
830Delectronic calculator HTH2~1976 4 funct2010_04_04N0 10N23VFD8 1/2NNNNN +/- % Pi x^2 1/x Sqrt 117x74x18 1xAAY    C/CE key
galerie/H/HTH.830D.version3830Delectronic calculator HTH3<=1977>=19774 funct2013_04_16N0 10N23VFD8 1/2NNNNNHitachi: HD37330+/- % Pi x^2 1/x Sqrt 117x74x18 1xAAY    C key
830MDelectronic calculator HTH1~1977 4 funct2010_04_04N1 6+4memN23VFD8 1/2NNNNN % Sqrt M+ M- RM CM117x74x18 1xAAY     
830MDHTH2~1977 4 funct2010_04_04N1 6+4memN23VFD8 1/2NNNNN % Sqrt M+ M- RM CM117x74x18 1xAAY  Korea  
galerie/H/HTH.no_model_name.id888unknown model  <=1977>=19774 funct2010_04_04N1 7+3memN23VFD8 1/2NNNNNHitachi: HD37350Sqrt % X^Y M+ M- RM117x74x18 1xAAY     



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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).