DATAMATH  CALCULATOR  MUSEUM

CONCEPT VI distributed by Zayre Corp.

Date of introduction:  1977 Display technology:  LED-stick
New price:  SRP $5.99 Display size:  8
Size:  5.3" x 2.9" x 0.95"
 135 x 74 x 24 mm3
   
Weight:  3.0 ounces, 86 grams Serial No:  C292547
Batteries:  9V  Date of manufacture:  year 1977
AC-Adapter:   Origin of manufacture:  Hong Kong
Precision:   Integrated circuits:  TMS0972
Memories:      
Program steps:   Courtesy of:  Joerg Woerner

Zayre Corporation was founded in 1956 by Stanley and Sumner Feldberg in Hyannis, Massachusetts as a discount department store chain. Zayre launched already in August 1975 the CONCEPT series of portable electronic calculators with the introduction of their first CONCEPT 24.

The Zayre CONCEPT Calculator Series culminated in June 1976 with the introduction of the Texas Instruments CONCEPT I, CONCEPT II, and CONCEPT III calculators based on the TI-1200, TI-1250, resp. SR-16 II but disappeared already in August 1979 with the clearance sales of the CONCEPT COMPACT calculators.

This CONCEPT VI calculator was introduced probably together with the CONCEPT V or shortly after it and is what we refer in the Datamath Calculator Museum as Far East Generic Design II. Don't miss the MYSTERY CONCEPT VI.

Dismantling the CONCEPT VI reveals no surprise - the printed circuit board (PCB) of the calculator is already known from e.g. the Texet 880. Please notice the "880" designation etched in the pattern of the printed circuit board (PCB) next to the REV B marks. 

Fellow collectors - if you own a Zayre CONCEPT calculator,  please report us the serial number and date code from the back of the calculator for our Database.


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

Joerg Woerner, February 5, 2010. No reprints without written permission.