Bohsei 3000 - a.k.a. Far East Generic Design I

Date of introduction:  1977 Display technology:  LED-stick
New price:   Display size:  8
Size:  5.2" x 2.8" x 0.9"
 132 x 70 x 23 mm3
Weight:  2.5 ounces, 70 grams Serial No:  673928
Batteries:  9V  Date of manufacture:  
AC-Adapter:   Origin of manufacture:  Hong Kong
Precision:  8 Integrated circuits:  TMS0972
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

Realtronic.jpg (40011 Byte)MBO3000.jpg (34489 Byte)Gracia.jpg (31298 Byte)You are familiar with this Bohsei 3000 calculator? 

You are right, this calculator - and its siblings named Academy, academy memory, Alltronic HK 9805, Bowmar, Cetina ET, Comico 1000, GPM 15, Gracia, Harvard Student H-303, Janon 3000, King Sonic 3000, MBO 3000, Nikjan, Nobility 3000, Noris 3000, Planar Memory, Realtronic, Seneca 1000, and Tronica 3000 - are a nearly perfect copy of the TI-1250. And please notice that not all of them share identical electronics - take a closer look for example at the Unitrex 1000

Within the Datamath Calculator Museum we refer to this calculator as Far East Generic Design I, probably the cheapest calculator of the 1970s. Don't miss the Design II and Design III.

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If you have additions to the above article please email:

Joerg Woerner, December 5, 2001. No reprints without written permission.