Mike Harrison wrote:

> Siemens do one which does a 1,2 or 3-tone 'chime', with a proper
> analogue output (not squarewave) part no. SAE800

  Give me a clue.  I tried to find a datasheet on the Siemens/Matsushita
site the other day and it was *useless*.  Do you (or anyone else) know
if they have a site for engineers to obtain information such as
datasheets, not just advertising?
--
  Cheers,
        Paul B.