HP-65 more on the card reader

[albertofenini]

Dear all, a last update :

Last night we worked on a second unit, and we put some effort on rebuilding the so called "clutch"
At first we sacrificed an old iPod ear pod, but as you will see in pictures, the thickest withe cable is loose in the aluminium sleeve.
Then we read in a post that the WD40 red dispenser could be used but also that was loose.
We took them some measures, that you will see in the post.
We found that the white cable for the left or right cable is good as inner insulation, and we found a blue
cable from a 220V cable be good as external insulation.
The only thing is, that the two are too thick to also remount the aluminium, sleeve.
Question : is important to use the aluminium sleeve or it can be left out ?