HP 41C Scientific Calculator with a Memory Module and Case for Sale

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HP 41C Scientific Calculator with a Memory Module and Case For Sale

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HP 41C Scientific Calculator with a Memory Module and Case:
$150.00

Used HP 41C scientific calculator with an HP 82106A Memory Module (SN 8039) and a case. Photos are of the actual item being sold. Three module port covers included (photo 2). Calculator in excellent cosmetic condition front and back. Power block repaired from corrosion in the battery compartment (photo 3). Everything works as expected. All 4 module ports work properly (each checked using a plug-in module). Battery charge port cover not original (photo 4). Everything works as expected. No user manual, no cables, batteries included to maintain memory. A card reader was used to load three programs into memory for fun, example, and/or utility: (1) ERTHDST - calculates the great-circle distance between any two locations on the earth\'s surface from specified latitude and longitude coordinates and the direction to begin travel from the first to the second location (see photo 1 for the distance for lat1 30.4506°N, lon1 91.1544°W to lat2 15.1321°S, lon2 30.1156°E of 8594.4962 miles; beginning travel angle of 87.9937° is not shown ), (2) HERON - calculates the area of any plane triangle from the 3 sides, and (3) MPG - calculates car mileage at fill-ups from miles1, miles2, and GAL. Program listings and instructions for use are included in case the batteries disconnect during shipment.