Help Identifying this old calculator EACA P-1104A

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SUMMARY

The discussion centers around identifying the EACA P-1104A calculator, believed to be from the 1970s or 1980s. The user notes the absence of identifying marks, with the only clue being the part number on the circuit board. Another participant speculates on the function of the keys labeled "S.T." and "A.T.", suggesting they relate to operations involving a total value, with "CE" indicating clear entry. This indicates a unique design and functionality for the calculator model in question.

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firebirdta84
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Hey guys,

New to the board, hoping someone can help me.

I am trying to identify what I believe to be the face of a very old calculator, circa 70's or 80's. Unfortunately it was butchered by someone for a project and there's no identifying marks, except for a part number on a circuit board on the back - EACA P-1104A.

If anyone can help, it would be appreciated. It looks like it had some sort of speaker and I've never seen keys for "S.T." or "A.T." on a calculator before.

DSCF5195_zpsc9f26a27.jpg


Joe
 
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Don't know the calculator, but the "T" probably returns a value from "T", AT may be add to "T" or add "T", ST could be subtact from "T" or store into "T". "T" is probably some form of a total. CE os clear entry.
 

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