Re: Clock

Posted by Redhexagon On 2023/6/4 2:17:27

I said capacitor and diode.

You solder the diode across the winding coil so that the high voltage generated in the winding coil as the contacts open and the magnetic field collapses is shorted out through the diode rather than causing an arc at the contacts.

You solder the condenser across the contacts. This is easy. The contacts ground the coil, so all you have to do is solder one condenser lead to the contact side of the coil, and solder the other condenser lead to ground. It should be at least 50 mfd.

The two of them together all but eliminate point arcing and erosion.

Friction wear of the geartrain pivots and of the contacts are still your enemy. They are cheap brass dollar store alarm clock movements. They last a few years at best before they are just plain worn out, or the lubricating oil gums up. Even the best quality clock oil has to be replaced every few years. Are you going to pry apart you clock case every few years? Two or three times is all you get before the tabs break off. It is a never-ending uphill battle.

What unspeakable horror happened to your fresh air ventilator?