Need help finding a buzzer ...

My old home has a couple of old servent's buzzers. These are chair rail mounted buttons that sound a pair of buzzers installed in a typical electrical junction box in the kitchen.

A while back, I heard a strange constant noise. Traced it to the junction box and noted that one of the buzzers was buzzing lightly. I checked to make sure that a button wasn't stuck. Looks like one of em just started to short out or otherwise gave up the ghost.

Anyway, I'd like to replace it. It is the size of a regular wall switch and mounts right into a double junction box.

Anyone ever see one of these gizmos?

[img]/forums/images/icons/wink.gif[/img]