STEVETERRY
Well-Known Member
An early name for the first Tungsten Halogen lamps, which had a quartz envelope and used Iodine or Bromine as the Halogen that re-deposited filament material back onto the filament rather than onto the quartz envelope in the "Halogen Cycle".
See Tungsten-Halogen for more details.
See Tungsten-Halogen for more details.