Product no.: Flex-PCB
Adhesive 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.
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Number of ratings: 34
Average rating: 4.6
Works well but not easy to install
from Mick Go on 12/18/2022
You must be very meticulous to install this flexible PCB. I have installed three already with different techniques each time. None of them is better than the other. Good product to give a second life to your calculator.
from Francisco on 12/11/2022
Fácil de instalar, siguiendo el tutorial y un video de youtube. Hay que empezar pegando la parte entre los dos conectores.
from Mark Manzonelli on 9/25/2022
The battery bay/expansion port taper worked like a champ. At first it did not work as it was my fault for not putting the unit back together correctly. Once I figured that out, all was good
from CCT on 4/22/2022
Very good quality product and premium customer service
from Collard on 4/13/2022
Very Good, Excellent
from Robert on 3/17/2022
The replacement is very high quality. Instructions very detailed. Installing or applying worked as expected.
Once installed it look like great and my HP-41CX work perfectly now.
from Franklin on 1/9/2022
Installation requires attention to detailed instructions. I found that watching online videos before starting was especially helpful when doing the folding for 90 degree sharp bends. Using a thin plastic rule was essential in making punctures where illustrated, and during folding operation. Did two installs and both turned out to be perfect.
from kelvin on 9/15/2021
It was really easy following the instructions. Great for resurrecting a damaged battery holder.
from Bill B on 7/22/2021
Easy to install and fits perfectly. Tip: when cleaning the base use a flat piece of wood (tongue depressor for ex.) allows the use of a wrapped 100 grit piece of sand paper to clean and remove the small plastic nibs. Wipe down with an alcohol pad to remove any residue oil from fingers. Adhesion was not a problem.
Good product, hard to install
from Yannis Tzavaras on 10/18/2020
1) Very fiddly to install you need to be good with your hands
2) very hard to find the instructions on their web page
Once installed, worked fine!
from Thomas on 9/12/2020
Easy to apply and fits perfectly. My HP41 runs again!!
from R Peel on 6/6/2020
Great Product - Easy To Install.
Perfectos, sin problemas.
from Joaquim Compte on 5/22/2020
Con un poco de habilidad es facil la sustitución del antiguo por el nuevo. Perfecto.
from JLE on 3/27/2020
The ribbon cable itself looks perfect! But as to MY ability to install it successfully is a different story. I just finished the origami folding, hoping to attach the ribbon cable some time today. Wish me luck.
It worked as promised - and then some.
from Charles Ess on 2/18/2020
The repair kit came with excellent instructions and important tips - these should be followed meticulously! It also turned out that the adhesive circuit is far more forgiving of error than I expected. It took me several tries before I managed to get it placed precisely on the plastic form - i.e., I had to remove and rest it several times. The adhesive still held reasonably well, even after the fourth or fifth effort. Jose @ the calculator store is also a champ in terms of offering quick and helpful advice and support when things don't go exactly as hoped and planned.
Exactly as Advertised
from Steven Archer on 2/7/2020
Was nervous about installation but instructions were detailed and I was able to carefully follow. Parts of the process are tricky but persever. What a relief when I screwed the back on, plugged in the batteries, and HP 41CV worked again! Thank you for supplying this part.
from Manfred on 12/22/2019
That saved the life of my HP-41CV. You need a lot of patience and sensitivity.
from Mark Porter on 12/4/2019
Saved my HP-41CV. Easy to fit if you follow the instructions and take your time. Thank yo for stocking this item.
from Hassan on 11/27/2019
When my HP41CX broke down, I thought I would not be able to have it fixed at a reasonable price, given the date of production of the calculator. Then I found the Calculator Store site which provided the solution (to replace the flex PCB). I tried it and it worked perfectly for me. The process of installing is however a bit tricky and needs to take time to read carefully the instructions. They are detailed enough and have been recently updated and you can also find a tutorial on youtube.
Excellent, fits exactly and works very well (despite the application is a bit hard)
from Anonymous on 9/7/2019
from Anonymous on 4/24/2018
Works great, my HP41C is running again :-) Carefully read the mounting instructions an take your time.
from Anonymous on 11/26/2016
Después de 20+ años en un cajón ha vuelto a revivir mi hp41c. El conector se encontraba completamente destruido por la corrosión. El montaje de este kit es un trabajo laborioso, pero con paciencia y siguiendo el manual paso a paso lo he conseguido en un par de horas. He necesitado un x-acto de punta fina y una regla transparente para hacer los dobleces y para insertar el conector en la parte de los puertos de expansión.
from Anonymous on 5/2/2016
Worked as expected and saved my calculator. Bending and sticking the flex pcb to the block proved being a bit fiddly task though. Glad to see my HP-41CV working again after many years.
Saved my HP 41 C
from Anonymous on 12/11/2015
Absolutely no complaints. Prompt delivery. Good description available how to use the kit and it works just perfectly.
Great service! I am very pleased.
Works as advertised, very satisfied
from Anonymous on 11/23/2015
Installation was straightforward from the instructions (there is also a video on how to install). Adhesive may not be strong enough for the battery contacts (nothing a few watch screws can't fix). Was able to resurrect a dead 41C.
from Anonymous on 8/25/2015
Le devolvió la vida a mi HP41c después de 20 años!!
El gran detalle según mi experiencia es que se debe doblar adecuamente el circuito flex antes de intentar colocarlo.
También hay algunas partes que no pegan después de desprender la cinta adhesiva. Recomiendo reforzar el pegado de estas zonas con pegamento instantáneo (metacrilato). También es importante fijarse que una vez instalado en flex cable en la pieza plástica, esta calce bien con la carcasa posterior.
from Anonymous on 8/20/2014
I was disappointed
From the picture on the website (and above) I assumed that this was a complete component to repair the HP41, not just the decal which needs to be bent etc to fit on the existing part.
Great, works perfect!
from Anonymous on 4/6/2014
Happy, that my old HP41c is working now :-D
Thank you, Lutz
NO ha habido forma de conectarlo
from Anonymous on 3/2/2014
Mala; segui los pasos del manual descargado, y nada; no se ha podido conectar, dinero tirado a la basura; era una pena pues tenía puestas garndes esperanzas en el producto; ya que como dicen es bastante rñeplica del original..
Si alguoien tiene una sugerencias , se lo agredeceria; muchas gracias
great solution to give a second life to my HP41C
from Anonymous on 2/9/2014
Il circuito è fedele all'originale, le istruzioni per la sostituzione sono precise e chiare, il risultato è impeccabile.
Fondamentale l'uso di un bisturi per rimuovere i pioli di plastica e una tessera plastica spessa per fare le pieghe senza danneggiare le piste. il costo della raccomandata è molto alto (18€) e i tempi di spedizione sono stati di 1 mese.
from Anonymous on 12/31/2013
Very pleased with the product. Worked out very well following the instruction. Had my doubts about the sticky side of the PCB but it uses a very high quality adhesive so no worries! The more than 30 year old 41C went back to life without any problems after 10 years in a drawer. Took me some time to find TheCalculatorStore as a supplier of the particular part, came across it more by accident. There are likely more users that need parts so maybe an improvement of the search attributes on the website would help.
Trés bon produit
from Anonymous on 12/5/2013
Avec un peu de patience et en suivant à la lettre les instructions (y compris celles recommandant de passer l'ensemble au four !!!) on parvient à un résultat excellent.
J'ai pu faire ressusciter ma 41CV. Merci!
from Anonymous on 9/18/2013
Resulto muy sencillo de instalar y, tal y como se termino, la calculadora funciono de nuevo.
The product is usefull, also the documentation
from Anonymous on 6/14/2013
works ok, quality is very good, but the shipping costs from Spain to Germany of about 18 € for 3 such small light PCBs is horrorable.
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