A new solution for broken back sides of HP41c

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A new solution for broken back sides of HP41c

Repairing the back side of your HP41c


One of the common problems that plague old HP41c is the breaking of the upper screw supports in the back side of the calculator. The lack of pressure thus causes the battery circuit to not make full contact - and the calculator doesn't work. The repair is quite difficult, since the contact area for adhering the broken plastic is very limited. We have created a piece that fits below the battery contact assemble, has enough surface to adhere to the back side, and can even substitute for the broken stands that fix the battery contact assembly:



You can remove the rests of the two screw supports of the case and glue this piece in place. If one support remains in place, you can cut the piece in half and just glue one part of the piece. Then you can put the battery assembly (original or new) on top of it, guided by the elevated parts, since it it designed to fit as below:



We will now work on the process: find the right glue, how to remove the rest of the screw stands, etc., so it is not ready for ordering yet. Please email to jose@thecalculatorstore.com if you're interested on repairing your back-side with this piece. In any case, it is a good item for your repair box!

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