Canon Palmtronic LD-8s a.k.a. Palmtronic 8s

Date of introduction:  February 1977 Display technology:  Fluorescent
New price:   Display size:  8
Size:  4.6" x 2.7" x 0.55"  
Weight:  2.5 ounces Serial No:  681988
Batteries:  2*AAA or NiCd Pack-4 Date of manufacture:  year 1977
AC-Adapter:  AD-2 Origin of manufacture:  Japan
Precision:  8  Integrated circuits:  TMS1042
Program steps:   Courtesy of:  Piero Todorovich

The Canon Palmtronic 8s, also known as LD-8s, followed the LD-84 and uses a much smaller housing similar to the LC-8M with a yellow LC-Display.

LD-8s_PCB.jpg (58796 Byte)The engineers at Canon used some tricks to achieve an overall thickness of only 0.55". The calculator chip, a TMS1042 based on the TMS1000 Microcomputer family, is soldered with bended pins on the printed circuit board and the green VF-Display uses straight pins. 

Funny to know that the Palmtronic 8s sports a hidden memory, view the Palmtronic 8Ms and Palmtronic 8Rs using the same calculator chip.

Don't miss the TI-2550 III introducing the TMS1043 calculator chip runing from just one AA-sized NiCd battery.

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Joerg Woerner, December 8, 2002. No reprints without written permission.