Quote:
Originally Posted by Restoration73
Many of the early GB (Gaumont British, later Rank) Equipments 16mm film projectors
used a 120v lamp, and an external dropper was required. I think the early projectors
were actually Bell & Howell made in the USA.
|
It's appallingly inefficient, but it does mean the lamp has good protection against switch-on surges, so life can be quite long, almost to the point where light output is falling because of blackening inside the bulb before the filament breaks.