Info needed on Blau table radio

[Jeffhs]

Originally Posted by dieseljeep

I'm not buying any more German radios for my collection. I have two of them now that have bad selector switches. The key board type. Evidently, someone used contact cleaner and it destroyed the plastics. The white plastic just crumbles.

You may not be able to restore the old switch buttons, but there may well be a supplier of antique radio parts somewhere (Radio Daze, AES, et al.) that might have reproductions of the buttons you lost. Alternatively, I'd look for a junked radio of the same type as yours, and use the keyboard buttons from that as replacements. The same advice applies if you need to replace the entire keyboard switch assembly, if such is damaged in any way or simply worn out from years or decades of use.

BTW, it looks to me, from your description, that whomever tried to clean those keyboard buttons on your radios with contact cleaner used far too much of the stuff if it ran onto the white keycaps. Contact cleaner used in moderation (just enough to wet the contacts) will not or should not attack plastics anywhere; it's only when someone blindly sprays the stuff into slots, etc. without watching what they are doing that they run into trouble with crumbling plastic and the like.