Month: November 2023

I man­aged to snag a Monroe 430 cal­cu­la­tor that was in good con­di­tion and a rea­son­able price. The Monroe 430 is 14 dig­it four-func­tion cal­cu­la­tor with mem­o­ry, per­cent, and a few oth­er extras. I have worked on a mod­el 425 and 420 in the past so I kind of knew what I was get­ting into, espe­cial­ly the lack of documentation.

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