"Dave Jennings" wrote in message
...
logized yik-yakked:

Is the new transformer the exact same model or just the same make as
the old one?
If not, then it may be the wrong specification or as you say the
buzzing may be from the light switch - does the switch have a light
dimmer? as they usually only work with electronic transformers and
maybe your new one isn't?

Dave

Hi ,

Same make, same specs - model number of the original no longer in use.

Buzzing definitely from the light switch, which does have a dimmer.

Both the original and replacement transformers are suitable for use
with dimmer switches.

Sorry if that makes it even more confusing!
--
Looks like there is some incompatibility even though the transformers appear
to be of equal spec to the old ones.
I think it would be a good idea for you to post the model and specs of the
transformer, dimmer and bulb wattage here and maybe someone can pinpoint the
problem.

Dave