DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| The Citizen
SR-270X calculator in its package.
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| The dot matrix display of
the SR-270X in the "Math Format" mode.
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The dot matrix display of
the SR-270X in the "Linear Format" mode.
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| This Citizen
SR-270X was manufactured
in 2009 by a Kinpo Electronics in China.
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| The printed
circuit board (PCB) of the Citizen SR-270X hides the
single-chip calculator circuit under a black epoxy blob.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, March 6, 2011. No reprints without written permission.
