I recently replaced my front door bell because it kept going off without being pushed.
When I removed the old one I noticed some type of diode or resistor thingy behind the button linking the two leads together. The new button did not come with this thingy. Now when I press the new button it starts to set off the chime but when I release the button the chime stops. Do I need the thingy on the back? And what is it exactly because I dropped the old one and can't find it now. Thank you.