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lyndon-----
For a driven car, I recommend only the use of current-technology halogen-type bulbs. There is only a modest difference in low beam light output, but it's a very worthwhile difference. With the high beams, there's a great difference. The current T-3 reproductions may be built on halogen technology. I don't think that the old style technology is even being manufactured, anymore. Obviously, the reproductions are manufactured by one of the major sealed beam manufacturers on a "custom-order" basis as far as the shell configuration goes. I sort of doubt that they'd produce old-style lighting elements if they don't otherwise manufacture them. Doing something like that would be cost-prohibitive. In any event, if the reproductions are manufactured on halogen technology, I suppose one could get the "best of both worlds".
As far as sealed beam manufacturers, AC Division of GM never made any sealed beams, although the sealed beams were often packaged in AC boxes. The sealed beams were manufactured by Guide Divsion of GM (the same division that made most of the lenses). Somehow, internally, I think that Guide Division was somehow "hooked up" with AC (perhaps, as part of the old-configuration AC-Delco, when AC-Delco actually manufactured parts). Anyway, that's kind of an academic point.
Guide has not manufactured a round-style sealed beam in about 20 years, or more. Quite a few years ago, Guide was "spun-off" from GM as a seperate company (one of the first of the GM parts manufacturing operations to be spun-off from GM). It didn't make it, though. It went into bankruptcy and, as far as I know, is now in complete liquidation. Another part of automotive history gone.
For a driven car, I recommend only the use of current-technology halogen-type bulbs. There is only a modest difference in low beam light output, but it's a very worthwhile difference. With the high beams, there's a great difference. The current T-3 reproductions may be built on halogen technology. I don't think that the old style technology is even being manufactured, anymore. Obviously, the reproductions are manufactured by one of the major sealed beam manufacturers on a "custom-order" basis as far as the shell configuration goes. I sort of doubt that they'd produce old-style lighting elements if they don't otherwise manufacture them. Doing something like that would be cost-prohibitive. In any event, if the reproductions are manufactured on halogen technology, I suppose one could get the "best of both worlds".
As far as sealed beam manufacturers, AC Division of GM never made any sealed beams, although the sealed beams were often packaged in AC boxes. The sealed beams were manufactured by Guide Divsion of GM (the same division that made most of the lenses). Somehow, internally, I think that Guide Division was somehow "hooked up" with AC (perhaps, as part of the old-configuration AC-Delco, when AC-Delco actually manufactured parts). Anyway, that's kind of an academic point.
Guide has not manufactured a round-style sealed beam in about 20 years, or more. Quite a few years ago, Guide was "spun-off" from GM as a seperate company (one of the first of the GM parts manufacturing operations to be spun-off from GM). It didn't make it, though. It went into bankruptcy and, as far as I know, is now in complete liquidation. Another part of automotive history gone.
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