On Fri October 5 2007, Frank Cox wrote: > That is a not-uncommon problem with Xenon lamphouses in movie theatre > projection rooms. The lamp is hooked to the rectifier with wiring that's > pretty much equivalent to welding cables. If the bolts that hold the cable > contacts down ever get loose, it can burn the ends right off of the cable. > Same thing with the screw-down clamps that hold the lamp in place. > > You have to check those connections on a regular basis and give them a > crank to keep them snug. It's not good when something like that happens, > especially on a Friday night with a blockbuster movie (which is when that > sort of thing will happen, of course.) Long as we're going on, I say you're a wuss '-) Back in the late 60's I co-operated a little drive-in theater in the mountains west of Washington, DC. We had arc-lamp projectors - you had to monitor those things constantly to keep the distance between the two electrodes a fairly close constant -- maladjusted one way, and the heat could build up and melt the film - that would really piss people off - let them drift too far apart and the sparc wouldn't jump the gap -- Claude Jones Brunswick, MD, USA
