|a rather cool and natty mains desktop model
from around 1971.
the 8a (with 8 digits) is more modern than the as-l
having a vacuum fluorescent display rather than nixie tubes, although the
display digits are separate units.
the digits are bright and elegantly styled, especially the number 4
which has a small extra segment at the right tip of the horizontal bar and
the small zero, which was usual at this time and appeared in pocket models
like the pocket mini and some early scientific
models (eg fx-10 & fx-20).
the display might have been influenced by the successful sharp qt-8d.
it operates like a normal desk calculator with the usual separate +=
and -= buttons. a switch activates an optional constant and another switch
can select 0-4 decimal places or full 8 digits. unfortunately the digit
truncation does not round so, for example, 2/3 (with 2 decimal
places selected) shows o.66
the machine will overflow if more than 8 digits are entered, showing E
on the left.