"Martin Pentreath" wrote
| I can mount the bell in a reasonably sheltered location
| under the eaves, but I think an ordinary indoor underdome
| bell would probably sieze up after a couple of years
| of being out in the British winter (such as
| http://www.tlc-direct.co.uk/Products/VE792.html ).
| So does anyone know where I can get an exterior grade doorbell?

The main problem is the vibrator contact. If you use an AC only bell off a
transformer you can use a bell without a vibrator.

This looks like an 8-12V AC only bell
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=6335846253

Alternatively an electrical wholesaler should be able to order you an
http://www.friedland.co.uk/PDF/produ...land_14-15.pdf
E2622/1 Mini Horn

Owain