The HP41 Corner

The HP41 Corner

The HP41 Corner

The HP41c calculator, produced from 1979 until 1990, was the standard in engineering and sciences during most of its life. Programmable, alphanumeric, with a high contrast LCD screen, and expandable, it was a true computer in your pocket. Here is our web hommage to it.

Its capabilities could be extended by means of ROM modules with additional functions, and with interfaces it could use printers, plotters, mass storage devices, bar code readers, measurement instruments, etc.

Recently, the user community has developed both new software in ROMs (like the Sandmath family) and hardware: a circuit that substitutes the original and throroughly updates the calculator in terms of speed, memory and functions, including all known modules ever developed (the HP41CL from Monte Dalrymple)


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31 - 38 of 38 results

Memory module for HP41c - USED

Product no.: HP Quad Memory

Quad Memory for HP41c calculators (256 registers)

25.00 *
In stock

Full-nut processor

Full-nut processor - please select C or CV type, or installation in your machine

English 10.00 *

HP 41CV Scientific Calculator - USED

Product no.: HP41cv - USED

The HP-41C series are programmable, expandable, continuous memory handheld RPN calculators made by Hewlett-Packard from 1979 to 1990. The original model, HP-41C, was the first of its kind to offer alphanumeric display capabilities. Later came the HP-41CV, with 4 times the memory space.

This is a very good sample, perfectly working, with all port covers and no traces of rusting. Includes protective original bag, but not box nor manuals

145.00 *

New Lower Post Repair part

Product no.: Lowpostrepair

Piece to repair HP41c full nut series lower screw posts

25.00 *
In stock

Keyboard support for repairs

Product no.: keyboard support

Piece required for the lower post repair of HP41c calculators.

25.00 *
In stock

HP 41C Tall Keys Scientific Calculator - USED

Product no.: HP41c tall keys - used

HP41c Tall Keys, perfectly working, with all port covers and no traces of rusting. Back and side ports and case are originals and included

English 175.00 *
In stock

HP 41C Scientific Calculator - USED

Product no.: HP41c - used

HP41c Tall Keys, perfectly working, with all port covers and battery holder in HP 3D printing process. The battery holder has new stainless steel springs and battery retention wings.

135.00 *

New Upper Post Repair part

Product no.: UpperPostRepair

Piece to repair HP41c series upper screw posts (tested with both fullnut and halfnut versions)

25.00 *
In stock

* Prices include VAT
31 - 38 of 38 results