|Type, Precision, Input mode
||Simple, 8 BCD digits, no exponent,
||1 summation register, not permanent
||8 digit 7 green vacuum
flourescent tubes plus one
for error indication and sign
|Texas Instruments TMS 0131 date
||Auto-summing register, very cool keys based on
reed switches. Instructions on the back.
|Original Pricing, Production
||4x AA or external DC 6V
off-the-shelf power supply, minus on center
||Length 16.2cm, Width 9.6cm, Height 4.5cm
||Identical to the Panasonic JE-855U. See also
When the auto-sum switch is set to "M" the result will be added to the
register whenever the "=" key is pressed. The register is cleared when
flipping the switch to enable the auto-sum feature.
The info sheet states that the unit works with 16 digits of internal
precision! However, by substracting the integer part and multiplying by
10 it is not possible to "pull out" those hidden digits. Also, 100/18
yields 5.55... so there's not even correct rounding applied to the last
digit. So I really wonder what good the additional hidden digits do -
if they really exist.