This is the replacement mercury bulb for the SE-6609 Photoelectric Effect Apparatus. It also is the bulb for the SE-6608 “Mercury Light Source without bulb”. It is used for the light source for the Photoelectric Effect but SE-6608 can also be used as a standalone mercury light source for spectrum experiments, such as used with the Educational Spectrophotometer.
This bulb is also a replacement part for the now-discontinued AP-8209 Photoelectric Effect Apparatus.
The Replacement Hg Bulb (SE-6597) is a replacement part for the: