DATAMATH  CALCULATOR  MUSEUM

Toshiba LC-840WA

Date of introduction:  1980 Display technology:  LCD
New price:   Display size:  8
Size:  4.9" x 2.7" x 0.3"    
Weight:  2,6 ounces Serial No:  G123083
Batteries:  2*LR44  Date of manufacture:  year 1981
AC-Adapter:   Origin of manufacture:  Japan
Precision:  8 Integrated circuits:  Toshiba T3923S, T3924S
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

LC-840WA_PCB.jpg (74425 Byte)This Toshiba LC-840WA added a full calendar function to the LC-859WA introduced in the same year. The technology inside this wonderful tool is quite interesting because it sports a combination of two Toshiba T3923S, T3924S chips. We discovered a similar constellation with the LC-836MN - the first portable electronic Databank.

 

 



horizontal rule

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

Joerg Woerner, September 23, 2003. No reprints without written permission.