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Canon Checkbook Junior

Date of introduction:  1982 Display technology:  LCD
New price:   Display size:  8
Size:  2.8" x 6.0" x 0.3"
 70 x 152 x 7 mm3
   
Weight:  2.4 ounces, 69 grams Serial No:  341384
Batteries:  CR2025 Date of manufacture:  year 1982
AC-Adapter:   Origin of manufacture:  Japan
Precision:  8  Integrated circuits:  NEC uPD1833G
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

You feel familiar with this Canon Checkbook Junior calculator? No doubts, it is nothing else than the original Checkbook with two of the three account memories and their respective keys removed. 

checkbook_jr_PCB.jpg (63598 Byte)Dismantling both calculators reveals a small surprise - they are identical. The only difference is the keyplate covering the missing keys from the original Checkbook. 



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If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, March 27, 2003. No reprints without written permission.