If you are interested in a tar core ballast you can pick up 175w Advance Ballast ( m56 or m57) at any of the electrical wholesalers for about $65. They use a little more electricity and are usually a little noisier.
Tom R
If you open up a PFO ballast it is Advanced ballasts inside it. I have this one and there is no noise at all. Sorry to side track this thread.
03-04-2009, 06:48 PM
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