Someone check the doorbell…

My house was built in 1929.  The doorbell is presumed to have come later, but maybe not much later.  It had been getting a little unreliable the last few years (!!!) but it all came to a head two weeks ago.

Anyway, the first step to healing is to admit you need to disassemble the thing.

OLYMPUS DIGITAL CAMERA

And a detail of those switch contacts:

OLYMPUS DIGITAL CAMERA

So, those machine screw ends are shorted together when the doorbell button pushes the brass spring down onto the (corroded) ends of the screws.  Repair methodology: file the metal parts until they’re shiny and new looking.  The material that the threads screw into is about 50 laminations of plain old paper.  Amazingly, it has held up through at least sixty years of outdoor use.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s