DATAMATH CALCULATOR MUSEUM
Canon Pocketronic II
|Date of introduction:||1974||Display technology:|
|New price:||Display size:||n.a.|
|Size:||7.9" x 4.0" x 2.0"||Printer technology:||Thermal|
|Weight:||1 pound 9 ounces||Serial No:||502877|
|Batteries:||11*AA||Date of manufacture:||year 1974|
|AC-Adapter:||Origin of manufacture:||Japan|
|Precision:||Integrated circuits:||TMS0138, TMS0641|
|Program steps:||Courtesy of:||Peter Muckermann|
The Pocketronic II was the successor of the famous Pocketronic resulting of TI's Cal-Tech project.
The main differece between the calculator is the squeezed electronics, the original three LSI-circuits of the Pocketronic were replaced with a standard calculator chip TMS0138. Instead of the integrated LED drivers a second integrated circuit drives the thermal printer head.
This Pocketronic II still lacks any display, view the competition from Casio sporting an 8-digit LED here.
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© Joerg Woerner, December 5, 2001. No reprints without written permission.