There should be two condensers in the housing. If you are going to remove them, be very careful as the are placed convex surface to convex surface and held in position by a piece of corrugated aluminum sheet that is just wrapped around the inside of the condener housing. If you don't know this, it can be quite a surprise when you take it apart.

My advice for the first time, is to take the entire condenser housing off of the enlarger and take the condensers out on top of your bed - using the mattress as a soft surface to catch any stray parts. This way, if something slips, you won't end up with a chipped condenser because it fell out of the housing and hit something hard...