DATAMATH CALCULATOR MUSEUM
|Date of introduction:||1973||Display technology:||LED|
|New price:||Display size:||12|
|Size:|| 6.9" x 4.0" x 1.6"
175 x 102 x 40 mm3
|Weight:||14.5 ounces, 440 grams||Serial No:||G51910|
|Batteries:||5*AA or NiCd-pack||Date of manufacture:||year 1973|
|AC-Adapter:|| BH-101, BH-102 or
|Origin of manufacture:||Japan|
|Precision:||12||Integrated circuits:||Toshiba T3125, T3130|
|Program steps:||Courtesy of:||Piero Todorovich|
This Toshiba BC-1205B - introduced in 1973 - was far ahead the competition. Instead the usual display with 8 digits or 10 digits resolution found in the LE-80 resp. Canon LE-10 this one sports a 12-digit display assembled with red LED's (Light-Emitting Diodes).
The BC-1205B makes use of a chip set consisting of the Toshiba
T3125 and T3130 never found in any other calculator.
Even the keyboard assembly looks unusual for such a small calculator. It uses a very reliable construction with small magnets and Reed-contacts known from early desktop calculators.
The Toshiba BC-0804B uses an almost identical housing but sports a green Vacuum Fluorescent Display.
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© Joerg Woerner, December 11, 2002. No reprints without written permission.