DATAMATH CALCULATOR MUSEUM
generation of the SR-10 uses
still the LED-modules known from the
famous Datamath calculator.
|Up to now we
are missing a SR-11
with the 6-digit LED-modules.
Instruments made several prototype
calculators with an additional lense-stripe
on top of the 6-digit LED-modules.
on the left was taken from an
early SR-10 prototype, the picture below
from a SR-11 prototype.
display construction of the SR-10
with a printed circuit board (PCB) with
discrete LED-modules and a lense-stripe.
with an identical display board.
This construction was used with the later
SR-16, SR-50 and SR-51 calculators.
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© Joerg Woerner, October 17, 2002. No reprints without written permission.