Hi Mike

On Saturday, 3 January 2015 02:39:29 UTC, Mike Tomlinson wrote:
En el artículo ,
jkn escribió:

I wonder what the
Friedland wired bellpushes use for a switch

Just bare bent copper contacts, but they've been making them for years
and they're in wide use, and seem to cope ok with our weather. Tried to
google for a pic showing the contacts but couldn't find one.


Interesting ... like Andrew Mawson I'd expect them to be something like
phosphor-bronze or similar, but whatever... I will probably pick one up to
take a look

The little switches in the cheapos are enclosed, which makes them trap
moisture and corrode, presumably.

Yes, that's a good point, thanks.

J^n