Yes, it is the mechanical clock.. And I can hear it ticking.

I also want to test some other stuff that is automotive. What would you suggest as a power source for testing 12v car parts? I could use a car battery that is available... But my preference is for something powered by household current and converted to 12v like an appliance. My wife has been through several "Litter Maid" cat boxes that run on 12v converter and break eventually; so I have a 12v converter available. My first thought was my 12v trickle charger for car battery.