DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
CONCEPT V distributed by Zayre Corp.
| Date of introduction: | July 11, 1977 | Display technology: | LED-stick |
| New price: | SRP $6.99 | Display size: | 8 |
| Size: | 5.4" x
3.0" x 1.1" 110 x 63 x 24 mm3 |
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| Weight: | 4.1 ounces, 75 grams | Serial No: | B 94089 |
| Batteries: | 9V | Date of manufacture: | |
| AC-Adapter: | Origin of manufacture: | Malaysia | |
| Precision: | 8 | Integrated circuits: | TMS0972 |
| Memories: | 1 | ||
| 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.
The CONCEPT V calculator seems to be a Far East design of an
unknown OEM (original equipment manufacturer). It was introduced in Summer 1977,
just a few weeks before Zayre Corporation discontinued the CONCEPT calculator
series.
Dismantling
this CONCEPY V calculator reveals a very simple construction centered around the
Texas Instrumnets TMS0972 single-chip
calculator circuit introduced already in 1975 and a LED display from the same
manufacturer.
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.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 5, 2010. No reprints without written permission.