Accessories and spares

Accessories and spares

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New HP41c Lower Post Repair Kit

Product no.: Lower Post Repair Kit

Set 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

55.00 € *
Old price 62.00 €
In stock

Complete HP41CL

HP41CL with the latest version of Systemyde circuit

English 610.00 € *

New HP41c Port cover - original

Product no.: Port cover

HP41c back port cover - original and used.

15.00 € *
In stock

New zebra connector holder

Product no.: zebraholder

Zebra Holder to keep the elastomeric zebra connectors in the contacts between main board and processor circuit in the HP41c calculator family, full nut versions.

12.00 € *
In stock

Piece for repair of back case of HP41C

Product no.: brokenback

1 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.


10.00 € *
In stock

Repaired HP41c back side

Product no.: HP41Cback

Repaired back side of HP41c. It can be used in case the original backside has the screw supports broken.

40.00 € *
In stock

New HP41c side cover

Product no.: Side Cover

HP41c side cover.

8.00 € *
In stock

New Repair kit for HP-41c battery bay and expansion ports

Product no.: Flex-PCB

Repair kit 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.

38.00 € *
In stock

New Assembly kit for HP-41c battery bay and expansion ports

Product no.: Flex-PCB Assembled

Assembled battery-back port module repair kit 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.

62.00 € *

New Zebra connectors for HP41C repair

Product no.: zebra

This 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.

6.00 € *
In stock

HP41c Printer

Product no.: HP 82143a

The 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.

140.00 € *
In stock

Case for HP Calculators

Product no.: calcCASE

Leather-like protective case for HP Calculators

15.00 € *
In stock

SmartStream 410

Product no.: NW278AA

Designed for use in math and science classes, the StreamSmart 410 connects real- world data to a student’s graphing calculator, with accurate and immediate real-time streaming.

Suited for use in a wide range of subjects, including: math, science, pre-algebra, algebra, trigonometry/pre-calculus, calculus, statistics, earth science, environmental science, physical science, physics, biology, and chemistry.

99.00 € *

HP Prime + SmartStream 410

Product no.: Prime+Smartstream

HP Prime + SmartStream 410: the basis to create your own laboratory! 

You only need one or more Fourier probes with their cables to begin measuring!

Free delivery in the European Union



230.00 € *

Wireless kit for HP Prime

Product no.: F0K65AA

Improve classroom interactivity and make learning easier with the HP Prime Wireless Kit,
which allows teachers to wirelessly push and pull content between the teacher PC and up to 30 HP Prime Graphing Calculators in a single classroom. Create and edit programs, exam configurations, and data sets on the teacher PC and send polls to and receive them from student calculators. View and project individual student calculator screens to the entire class.


550.00 € / 30 piece(s) *

Fourier Probes

Product no.: Probes

A full range of probes specifically designed to work with HP's Mobile Lab: Smartstream 410 + HP Prime or HP50g

English 9.00 € *

Thermal Paper for HP Printer - single roll

Product no.: HP-82175

Thermal Paper for HP calculator printers: (HP 82240a & b, HP-92 & HP-97, 82143a & HP-IL printer) single roll

2.00 € *


Product no.: NW241AA

Powerful data collection tool for math and science classes: The powerful, simple HP StreamSmart 410 makes math and science exciting to learn and easy to teach. Visualize experiment results immediately by streaming data in real time from a variety of sensors. Spend time doing experiments rather than preparing them - just plug in the calculator and sensors, and go! Empower students with physical experiences of mathematical models and science students with discovery of the physical laws that govern matter. This reliable calculating solution covers a wide range of experiments, requires minimal setup, and lets students truly experiment by collecting data and seeing the results in real time.

99.00 € *

New Firmware Flashing service for HP30b, HP20b

Product no.: Flash

We offer the flashing of new firmware for the 10bII+, 12c+, 20b and 30b.

These calculators have a port that allows the user to flash a new firmware. For that, a special cable is needed.

18.15 € *

X-Functions module for HP41c/cv - USED

Product no.: HP 5061-5256 - USED
45.00 € *
In stock

Time module for HP 41c/vc calcs - USED

Product no.: HP 82182A - USED

Time module for HP 41c/vc calcs 

HP 3478A Multimeter - USED

Product no.: HP 3478A - USED

The Hewlett Packard 3478A unit is a digital multímeter capable of performing 5 different types of measurements: DC voltage, true RMS AC voltage, 2 and 4 wire resistance, and AC and DC current.

180.00 € *
In stock

50g English manual

Product no.: 50g English manual
15.38 € *
In stock

38g Serial interface kit user's guide MAC

Product no.: 38g SIK manual MAC
15.38 € *

38g Serial interface kit user's guide

Product no.: 38g SIK manual Windows
15.38 € *
In stock

New Power Supply for HP 82240B printer - English plug

Product no.: F1011A Power Supply

N.O.S. Power Supply for the HP 82240B printer. Experience how fast your printer can go - compared with running off batteries. It is a different world!

Attention - UK plug - not Schuko. For European or American users, an adapter is required

25.02 € *
In stock


If you need to do quick calculations on the road, our compact, stylish Quick Calc calculator is ready. It's simple to use, and so small that you can keep it on your key chain, in your handbag or briefcase, or in your car.

Compact and stylish

  • Use at home, in the office, or in between
  • Attach to a refrigerator or metal desk or cabinet via the magnetic back
  • Carry and store on a key chain, in your bag or briefcase, or in the car




6.15 € *

Advantage Pac para HP41c/cv/cx - USED

Product no.: HP 5061-7285 - USED

After the introduction of the HP 15c, the HP41c, while being the only alphanumeric, expandable, I/O-capable calculator, was not anymore the best mathematical calculator. Therefore, HP set to implement the  best mathematical routines in the Advantage pac. It included integrals, solver, matrix, Time Value of Money routines, and much more.


100.00 € *
Old price 110.00 €

X-Memory module for HP41c/cv - USED

Product no.: HP XMemory

Extended Memory for HP41c, HP41cv and HP41cx calculators

25.00 € *

Memory module for HP41c - USED

Product no.: HP Memory

Memory for HP41c calculators (64 registers)

15.00 € *
In stock

* Prices include VAT
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