The HP Calculator Specialist
Calculator Types 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)
New Zebra connector for HP41C repairProduct no.: Zebra PCBThis piece is for repair of HP41c full nut calculator, substituting the damaged or corroded zebra connector that links the main board with the processor circuit. New design. |
Assembled HP-41c battery bay and expansion ports module FlatProduct no.: Flex-PCB AssembledFlatAssembled module for the often damaged flexible PCB in the battery bay (and I/O ports) of the HP-41c range of calculators. Shipping included in price for EU customers. This is the FLAT version, when the screw head domes are broken and grinded down - see pictures. New price: cheaper circuit translating to 10% lower price! |
Assembled HP-41c battery bay and expansion ports moduleProduct no.: Flex-PCB AssembledAssembled module for the often damaged flexible PCB in the battery bay (and I/O ports) of the HP-41c range of calculators. Shipping included in price for EU customers. New price: cheaper circuit translating to 10% lower price! |
lower post long screw - inoxProduct no.: lowerscrewTwo long screw for the lower screw posts of HP41c calculators |
New Set of 4 screw for HP41 - inoxProduct no.: ScrewsetTwo long screw for the lower screw posts of HP41c calculators + two long screws for upper posts. |
lower post long screw - black pairProduct no.: lowerscrewblackTwo long screw for the lower screw posts of HP41c calculators - black |
Spacer set for repairing old HP41cProduct no.: SpacerSetSet of 8 pairs of spacers for nut-screwed full-nut HP41c calculators. Substitutes the nuts that are screwed on the lower posts to secure the circuit, |
New HP41c Lower Post Repair KitProduct no.: Lower Post Repair KitSet of pieces needed to repair successfully the lower posts of HP41C, 41CV and 41CX full nut calculators, including zebra connectors, lower post part, and keyboard support for clothes' pegs to protect the keyboard
Old price
70.00 €
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Battery holder 3DProduct no.: Battery holder 3DBattery holder case for the HP41 family of calculators, made with 3D printing and springs in stainless steel 304 alloy |
New HP41c Port cover - 3DProduct no.: Port cover 3DHP41c back port cover - 3D, new - set of 4. |
HP41c battery holder springProduct no.: SpringStainless steel 304 springs for HP41C battery holder |
New zebra connector holderProduct no.: zebraholderZebra Holder to keep the elastomeric zebra connectors in the contacts between main board and processor circuit in the HP41c calculator family, full nut versions. |
Piece for repair of back case of HP41CProduct no.: brokenback1 Piece for repairing HP41c back cases. This piece is for repair of HP41c back halves, specifically the support of the upper screw heads that is often damaged, and very difficult to repair in a lasting way.
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New Repair kit for HP-41c battery bay and expansion portsProduct no.: Flex-PCBAdhesive circuit for the often damaged flexible PCB in the battery bay (and I/O ports) of the HP-41c range of calculators. Shipping included in price. |
Repaired HP41c back sideProduct no.: HP41CbackRepaired back side of HP41c. It can be used in case the original backside has the screw supports broken. |
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4 x Piece for repair of back case of HP41CProduct no.: brokenback44 pieces for repairing HP41c back cases. This piece is for repair of HP41c back halves, specifically the support of the upper screw heads that is often damaged, and very difficult to repair in a lasting way.
Old price
72.00 €
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HP41c PrinterProduct no.: HP 82143aThe HP 82143A is a thermal printer that was connected to a slot of the HP-41 series calculators. This printer was introduced with the first hp 41c. At the time, it was the first calculator that could use an external printer - in the line of endless expandability. This unit works flawlessly and comes with a nearly complete paper roll and a new one. |
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Thermal Paper for HP Printer - single rollProduct no.: HP-82175Thermal Paper for HP calculator printers: (HP 82240a & b, HP-92 & HP-97, 82143a & HP-IL printer) single roll |
X-Memory module for HP41c/cv - USEDProduct no.: HP XMemoryExtended Memory for HP41c, HP41cv and HP41cx calculators |
Battery holderProduct no.: Battery holderBattery holder case for the HP41 family of calculators |
Memory module for HP41c - USEDProduct no.: HP MemoryMemory for HP41c calculators (64 registers) |
HP41CL InstallProduct no.: HP41CL InstalaciónInstallation and set up of HP41CL module in your HP41C, CV or CX |
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HP82104A Card ReaderProduct no.: Card readerHP82104A Card Reader for HP41c family with manual |
Quad Memory module for HP41c - USEDProduct no.: HP Quad MemoryQuad Memory for HP41c calculators (256 registers) |
Full-nut processorFull-nut processor - please select C or CV type, or installation in your machine |
HP 41CV Scientific Calculator - USEDProduct no.: HP41cv - USEDThe 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.
Old price
145.00 €
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New Lower Post Repair partProduct no.: LowpostrepairPiece to repair HP41c full nut series lower screw posts |
Keyboard support for repairsProduct no.: keyboard supportPiece required for the lower post repair of HP41c calculators. |
New Upper Post Repair partProduct no.: UpperPostRepairPiece to repair HP41c series upper screw posts (tested with both fullnut and halfnut versions) |
Financial Pac for HP41c - USEDProduct no.: HP Financial PacFinancial Pac for HP41c calculators |
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3 different Math modulesProduct no.: Pac of MathPacCollectors Math Pac: all three different Math Pac versions! |
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Feet for HP41c HP41cv HP41cx calculators - set of 4Product no.: feet41cAdhesive black silicone feet for HP41c HP41cv HP41cx calculators |
Aviation X Pac for HP41c - USEDProduct no.: HP Aviation X PacAviation Pac for HP41c calculators |
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Operating manual for Experienced user HP41c/cv - InglésProduct no.: Manual HP41c[2]Operating manual for Experienced user HP41c/cv - Inglés |
HP41c/cv Manuel de l'utilisateur expérimenté - FrenchProduct no.: Manual HP41c[3]HP41c/cv Manuel de l'utilisateur expérimenté - French |
10nF capacitorProduct no.: 10nFcap10nF Capacitor to solder close to the screen of HP41c units before serial number 1954A to be able to use different processors (including the CL circuit by Monte Dalrymple) - 50v |
HP 41C Repair
HP41c Repair