Restoring a HP9830B calculator.

[MattisLind]

Well. I just tried to repair the broken Cherry switch. I bought some piano wire and bent it into a small U. Then I used a soldering iron to heat it up while slowly pressing it into the plastic of the key switch. It didn't came out 100 % exact. It seems to be off by half a millimeter from the centre. But to me it is good enough. It feels very stable and won't certainly break that easy. Three more to go!