HP-25 Co-luminous segments

[Maximilian Hohmann]

Hello!

(04-07-2022 01:04 PM)Tom Flatterhand Wrote:  How safe is it if I try them out with a screwdriver that they won't get damaged in the process?

Until 10 years ago (or so) the rubber feet could easily be pulled out without damage. But in my experience they now have aged to such a degree that usually under the hard top layer there is not much left but crumbles of synthetic rubber. Some turn into rather sticky stuff reminiscent of old chewing gum, it probably depends on the storage conditions.
Sooner or later they will fall out by themselves anyway, so you can as well remove them.
To replace them I cut "new" ones from a white eraser (similar to this one: https://www.amazon.de/Staedtler-Radierer...1671655517) using a sharp knife. With sufficient carving skills one could even replicate the orginial mushroom shape.

Regards
Max