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Unisonic LC 7463

Date of introduction:  1982 Display technology:  LCD
New price:   Display size:  8
Size:  2.2" x 3.9" x 0.20"
 92 x 54 x 7 mm3
   
Weight:  1.5 ounces, 39 grams Serial No:  
Batteries:  2*LR43  Date of manufacture:  Mar. 1982
AC-Adapter:   Origin of manufacture:  Taiwan
Precision:  8  Integrated circuits:  NEC uPD1032G
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (US: 2.5 MByte)

Unisonic introduced with this Model LC 7463 in 1982 an "Ultra Thin Alarm Clock Calculator with Enamel-Like Finish". The specifications look rather familiar to us - compare this LC 7463 with the TI-1788.

Dismantling the featured LC 7463 manufactured in March 1982 by an unknown OEM (Original Equipment Manufacturer) in Taiwan reveals a clean design centered around a NEC uPD1032G single-chip calculator circuit soldered on a double-sided printed circuit board (PCB) and powered by two small LR43 batteries.

Inspecting the PCB of this Unisonic LC 7463 calculator brought our attention to a small mark reading CC-50, we spotted a similar PCB-Mark already with the TI-1788 reading CC-31 B and started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.



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

Joerg Woerner, May 11, 2020. No reprints without written permission.