DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The boxy design of the Sanyo ICC-0081. |
It is heavy but still portable. To us it looks very similar to Sanyo's cassette tape recorders. |
The rechargable NiCd batteries and the amber glowing display.. |
The calculator brain with
four Sanyo chips (manufactured under license
of
General Instruments Corp.) and the discrete display drivers. Please notice the different date codes of the 4 chips: The LM8001 and LM8002 were manufactured early in 1971, the LM8003 and LM8005 later that year. The backside of the printed circuit boards gives an easy explanation: They were replaced end of 1971. |
The display board of the ICC-0081 with 8 single gas-discharge tubes. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, October 9, 2002. No reprints without written permission.