horn, bell, and whistles

[jimprinz]

I'm thinking about buying a Willaims Steam (B&O) and a Diesel DC38. They are advertized with either a horn and bell or a whisl\tle or bell.
I am using an old Lionel ZW transformer that doesnot have a bell switch on it.
Is something available that would activate the bell?

Thanks
Jim

[phillyreading]

Lionel made an add on sound activation switch that you can buy and hook it up in reverse to get the bell feature to work for your Williams engines.
 The one I have has a Lionel part number 6-5906 on it.

Lee F.