DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Western Auto electronic Wizard aka M4995
| Date of introduction: | 1973 | Display technology: | LED-stick w/o lens |
| New price: | $34.95 | Display size: | 8 |
| Size: | 5.7" x 3.1" x 1.6" 146 x 79 x 41 mm3 |
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| Weight: | 5.6 ounces, 159 grams | Serial No: | 0004916 |
| Batteries: | 4*AA | Date of manufacture: | wk 18 year 1974 |
| AC-Adapter: | AC9160 | Origin of manufacture: | USA |
| Precision: | Integrated circuits: | TMS0128 | |
| Memories: | |||
| Program steps: | Courtesy of: | Joerg Woerner |
This
close relative of the Montgomery Ward P8P
a.k.a. TXI-8645A
was sold
as electronic Wizard from the distributing company Western Auto. Don't be confused with
the electronic Wizard M4993 based on the
exactra 23, the elecronic Wizard M4986 based on the TI-1200
or the elecronic Wizard M4987 based on the TI-1250, this
one is named M4995.
Dismantling
the M4995 reveals a printed circuit board (PCB) 100% identical with the
Montgomery Ward P8P despite the missing switch next to the [%] key.
The
TMS0128 located in this rare electronic Wizard introduced in Fall 1973 traces
back to the TMS0102 "calculator-on-a-chip"
announced two years earlier by Texas Instruments. We know the TMS0128 already
from the Canon LE-82.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 2, 2012. No reprints without written permission.