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Sears LC 89 

Date of introduction:  1978 Display technology:  LCD
New price:   Display size:  8 (5 + 2)
Size:  5.2" x 2.9" x 0.4"
 133 x 73 x 10 mm3
   
Weight:  2.8 ounces, 80 grams Serial No:  156361
Batteries:  2*LR44  Date of manufacture:  mth 03 year 1981
AC-Adapter:   Origin of manufacture:  Japan
Precision:  9 Integrated circuits:  Toshiba PN1033734
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

LC89_Back.jpg (175719 Byte)This Sears LC89 scientific calculator was manufactured in 1981 and is identical with the Toshiba SLC-8260 introduced already in 1978.

LC89_IC.jpg (222642 Byte)LC89_PCB.jpg (243915 Byte)Dismantling the LC89 reveals indeed a well-known design and even the single-chip calculator circuit still carries the unusual part number PN1033734-1.



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

Joerg Woerner, November 3, 2008. No reprints without written permission.