Don't know whether you can still get them or not but I was faced with
the same problem several years ago and found a wireless door bell from
Byron in which the rf circuit directly drives a standard bell - the
part number is SX15. It takes a couple of D cells to drive it and I've
never had to replace them. Again I think I got it from B&Q for
something like a tenner.

In fact here it is

http://ccgi.byrons.force9.co.uk/prod...d1=2&catid2=11

I know it's fun trying to solve these challenges but I would suggets
this is a no brainer if you can find an outlet for this bell.

Rob


Duncan wrote:
I have a wirefree door bell system but the chimes are hopelessly quiet
for my environment. All those I have tested are similar. I would like
to hack into the chime and use it with a relay to operate a traditional
loud wired bell. Has anyone done this successfully and know a suitable
wirefree chime to modify? (Unfortunately it looks like the one I have
produces a pulsed output which won't latch a relay.)

Alterntively maybe there is a product that has a receiver switch
instead of a chime?

Duncan