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Radio Shack/Tandy EC-4031

From: Russell
Email: russell.crichton@student.curtin.edu.au

Comments

Desparately need a manual for old faithful. Its an EC-4031 badged as Tandy or RadioShack (depending on your country). Need to know how to use the "n" or sum of X button (statistics). So even if you dont have a manual but know how to do this please let me know.

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