I saved some parts from the projectors and took a small stepper motor and 24v muffin fan from a toner drum that was going in the trash at work. There is also a Lutron 1500 watt incadescent dimmer, that was working many years ago when it was taken out of service and the candelabra lights replaced with fluorescent tubes at the church I attend. I saved it because it has a 4 1/2" square aluminum heat sink.
The projectors each had one squirrel cage fan, a very small speaker and 3 muffin fans. The capacitors on the circuit boards are mostly 16v. That was a dissapointment to me. I wanted 50v+ caps for electronic repair. All the fans are 12v dc except the 24v one that came off the toner drum.
All these are free to a good home. TomW gets first dibs because he pm'ed me about the projector parts after I had already tossed the optics. They don't make these things serviceable anymore. Everything was soldered down and digital except for the external focus lens.
The 2 black wall adapters are 24vac 600ms with a recessed male plug on the front. I don't remember what they were from.