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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The
sales box of the Canon Pocketronic II sold
in Fall 1974 in the US.
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This Pocketronic II Printing Calculator was manufactured
in August 1974 by |
The Canon Pocketronic II is powered by
11 AA-sized
rechargeable batteries.![]() |
The inside view
of the Pocketronic II with the backside of its housing removed.
|
The Main
printed circuit board (PCB) of the Pocketronic II is
centered around a TMC0138 single-chip calculator circuit and a TMS0641 Printer Chip driving the 4x5 dot-matrix thermal heater elements directly. ![]() |
Close-up view of the
TMC0138
single-chip calculator circuit.![]() |
Close-up
view of the TMS0641 Printer Chip.
|
Close-up view of the serial thermal
printhead assembly and its heater elements.![]() |
Close-up of the electromagnetic
actuator with its ratchet mechanism.![]() |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, April 13, 2024. No reprints without written permission.