We've had an expensive and very reliable fluorescent fixture in our small galley kitchen for ten years. It's a long, 42 inches or so, four-tube fixture. :) Then the ballast 'went bad', the lights wouldn't come on.
So, off to the long-established, professional lighting store we have worked with for years to order a new ballast. Had it properly installed by a licensed contractor we've worked with for years.
Guess what, the light is great but whenever the fixture is on, it creates static on the VHF stations on all the TVs in the house! (We are lucky, we have excellent reception with a roof aerial, no need for cable).
The contractor is scratching his head; the store vaguely thinks we need to 'check the grounding wire' (but that makes no sense, it wasn't changed); two other knowledgeable how-to types both said they thought the new ballast was 'bad'. However, neither of them thought there was any way to test the ballast (!)
The bulbs work fine in another fixture (different circuit), so it's not the bulbs.
We would really appreciate advice from any knowledgeable electricians out there -- THANK YOU!!