DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Heathkit IC-2009
| Date of introduction: | December 1972 | Display technology: | LED |
| New price: | SRP $99.95 | Display size: | 8 |
| Size: | 5.5" x 3.3" x
1.7" 140 x 84 x 44 mm3 |
||
| Weight: | 11.6 ounces, 328 grams | Serial No: | |
| Batteries: | 6*AA NiCd | Date of manufacture: | |
| AC-Adapter: | Origin of manufacture: | USA | |
| Precision: | 8 | Integrated circuits: | TMS0103 |
| Memories: | |||
| Program steps: | Courtesy of: | Joerg Woerner |
At
first glance this early kit calculator sold by Heathkit looks like a Bowmar
901B.
To
stop any discussions about the source of this wonderful early IC-2009 we should
explore the internal construction. Dismantling the calculator is pretty easy -
memorize that it was sold as a do-it-yourself kit between December 1972 and
May 1974.
The printed circuit board (PCB) of the IC-2009 is unique and completely different to the Bowmar line. Nevertheless there are a lot of similarities:
| •
Original Klixon™
keypad manufactured by TI • TMS0103 calculator-on-a-chip by TI • Opto-stic LED display manufactured by Bowmar |
The priced of the IC-2009 dropped down to $89.95 before the calculator was replaced with the IC-2006. The IC-2006 uses a much smaller housing with a complete different design.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, September 28, 2003. No reprints without written permission.