Anyone have the schematics for that external filter?

[The Jerk]

There was a schematic/how-to on building an external filter for the power leads to a radio to eliminate alternator whine? I can remember it, but can't seem to find it...all I remember is it was a box, a magnet, and capacitor?

Anyone have that handy? I need to build one for the truck...my PC76XL must have better power supply filtering than this General HP40W.

 

[seedkey]

is it this one?

http://www.worldwidedx.com/home-brew/31492-building-simple-alternator-whine-ignition-filter.html

 

[The Jerk]

That's the one...I was looking in the wrong forums, and "filter" is too broad a search term!

Thanks!