DATAMATH CALCULATOR MUSEUM
Hewlett-Packard HP 30b Business Professional calculator in its package.
|The HP 30b Business
Professional is delivered with a very nice pouch.
Hewlett-Packard HP 30b Business Professional was manufactured
in April 2010 by a contract manufacturer in China.
circuit board (PCB) of the HP 30b hides the
single-chip calculator circuit under a black epoxy blob.
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© Joerg Woerner, May 16, 2011. No reprints without written permission.