Hhhmmm, I never had this problem. I am not super technical, but do you think that maybe your magnets might have more juice going to them than other people? I know coils can have this problem because they are not regulated. When I put a voltage regulator on my machine, my flippers weren't shooting balls like crazy and breaking things. Wonder if the same principal could apply to magnets. If there is extra power going to them, maybe they get magnetized quicker than average?

Just a thought....

Didn't know there were carbon based balls to put in machines. My WoZ needs a new set. Where did you get yours from?

I had the same problem with my Lost In Space. I put in the expensive, mirror balls and it took only three games to magnetize them.

I'd recommend these, worked great on my metallica and never got magnetized. Also they really shine http://www.pinballlife.com/index.php?p=product&id=1325

I wonder if those demagnetizer machines work? Or ever think of taking your balls to register at walmart and asking to run it across the demagnitizer panel they use on their security tags? Dunno just throwing ideas around.

What about passing them through a degaussing loop. Like the kind they put around CRT tubes. Build a small one into the outhole so it passes through the loop every game.

Thanks. I have had magnetized balls over the years. But not often enough where something like this would be necessary. But if it is a real problem this could be a nice mode to sell.

So I want royalties

Instead of passing it through a coil if something sitting in the trough like a VHS tape erase head would work that could be put in many places. But I'm not sure if that would remove the magnetic field or just try to align it.

Find out what this is based on.

http://www.amazon.com/IIT-90262--Magnetizer-Demagnetizer-Tool/dp/B005N8X1WI/ref=sr_1_1

These are for screwdrivers so they are way too small. But at $5 there is not much in it and no power needed reducing liability of a powered product. There are ones that are flat. So I wonder if something could be made that can clip on the side of a wire ball habitrail for every time a ball passes by it degrades the field.

Go to sleep, it's Christmas eve!!