DATAMATH CALCULATOR MUSEUM
circuit board (PCB) of the Galaxy 10 looks familiar to
us. Please notice
the unfamiliar coding of the single-chip calculator circuit.
| The printed
circuit board (PCB) of the Galaxy Junior is identical. The only
difference is the
missing resistor to select the "TI-10" or "Junior" software in the calculator chip.
IC of the Galaxy 10 with
the unusual 1110484-0002
identical part number was
found in the early production
Galaxy Junior with the
more common CD4816
internal construction of this late TI-30 Galaxy manufactured in Italy is
with the Galaxy 10 shown above. The calculator circuit is a CD4808.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, June 12, 2004. No reprints without written permission.