Sometimes it can be quicker and/or cheaper to pick up a whole fixture, and transfer the guts to your vintage fixture, than it is to buy a discrete ballast. I recently did this on an older looking camper fixture; the newer replacement would have left the "shadow" of the old fixture visible, including a hole. This is especially true of home and shop fixtures... shop-lights on sale are 1/4 the price of a ballast, go figure. Supply and demand I guess. HIH
It seems I love the mountains and deserts more than my friends do. I sure miss them!
1971 Streamline Imperial project "Silver Snausage", 1985 Coleman tent trailer, 1964 Little Dipper, 1975 Northwest "Proto Toyhauler", 2004 Harbor Freight folding, still seeking my Airstream.