DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The
sales box of the Canon Pocketronic II sold
in Fall 1974 in the US.
|
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 the 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.