The HP41 Corner
New book from The Calculator Store: HP41 Repair: A Beginner's Guide to Repairing your HP41 Calculator. 14.00€ paperback version, 9.99 Kindle version. Only in Amazon
We have been told that the book is not visible in some of the amazon websites worldwide. Here we offer links to all of them:
amazon.com
amazon.co.uk
amazon.de
amazon.fr
amazon.es
Amazon.it
Kindle and paperback versions available now!
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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Assembled HP-41c battery bay and expansion ports module
Product no.: Flex-PCB Assembled -
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Assembled HP-41c battery bay and expansion ports module Flat
Product no.: Flex-PCB AssembledFlat