how long should they last?” Because of the response I have had from the first article I thought it might be a good idea to continue our discussion of the subject of projectOver the past 25 years I have had the unique opportunity to talk directly with many of the professionals and instructors who use Overhead Projectors as an integral part of their profession. Through these interactions I have accumulated notes and information that has inspired me to write these articles that pertain to some of the most common problems experienced by owners of today's and yesterday's Overhead Projectors. This is the ninth article in a series of articles that will be written from a professional Electronics Technicians point of view in regards to some of today’s most common Overhead Projector problems and questions.

This is part two of my article titled “Projection Lamps; how long should they last?” Because of the response I have had from the first article I thought it might be a good idea to continue our discussion of the subject of projecti

eir profession. Through these interactions I have accumulated notes and information that has inspired me to write these articles that pertain to some of the most common problems experienced by owners of today's and yesterday's Overhead Projectors. This is the ninth article in a series of articles that will be written from a professional Electronics Technicians point of view in regards to some of today’s most common Overhead Projector problems and questions.

This is part two of my article titled “Projection Lamps; how long should they last?” Because of the response I have had from the first article I thought it might be a good idea to continue our discussion of the subject of project

ms experienced by owners of today's and yesterday's Overhead Projectors. This is the ninth article in a series of articles that will be written from a professional Electronics Technicians point of view in regards to some of today’s most common Overhead Projector problems and questions.

This is part two of my article titled “Projection Lamps; how long should they last?” Because of the response I have had from the first article I thought it might be a good idea to continue our discussion of the subject of project

Technicians point of view in regards to some of today’s most common Overhead Projector problems and questions.

This is part two of my article titled “Projection Lamps; how long should they last?” Because of the response I have had from the first article I thought it might be a good idea to continue our discussion of the subject of project

how long should they last?” Because of the response I have had from the first article I thought it might be a good idea to continue our discussion of the subject of projection lamps and premature burnout.

One of the most frequent questions we receive from our customers is what causes early projection lamp failure. A lot of people are making simple mistakes that end up costing them a lot in burned-out lamps.

For instance, did you know:

• Moving the Overhead Projector while the lamp is on or even shortly after turning it off can cause premature failure. A hot lamp filament can easily be damaged if handled roughly while still hot.

• If an Overhead Projector lamp does not burn out immediately, but burns out within an hour, the lamp is probably defective, not the projector. In many cases diode failures are the cause of many burned out lamps.