As far as I am aware I don't think that Tung-Sol even makes light bulbs anymore. I know that they still make vacuum tubes though, as I buy them for different equipment that I have. When it comes to buying light bulbs I usually shop for the on-line at Bulb Town. Here is a link for the 1133 bulb for the Cub:http://www.bulbtown.com/SearchResults.asp?Search=1133
As for the "sale" price that is listed in the link, that has been the price for over a year. These guys always have the bulbs that I can't seem to find anywhere else, and their prices are great. Whenever I order some bulbs for something else I usually tack-on extras for the antique cars, and now the Cub as well.