When did Sylvania stop making tubes?

I have some Sylvania tubes that say Made in USA. Anyone know when they stopped making them in the US?

spareribs01-04-2009 12:45am

benie Details Discussions Posts This discussion Message User 147 posts 01-04-2009 at 08:32am Copy Comment URL Report Comment Edit Delete I believe they were bought out by Philips. Not sure how long they used the Sylvania for afterwards.