BELTS: Depends on which you are referring to, and your equipment... My Simplex 6,000 ft magazines (5/16 in shaft) use a round leather belt which is jointed with a stiff piano wire staple... This belting is actually a treadle sewing machine item that I buy in bulk from a sewing machine service dealer, who orders it for me... The stuff is amazingly durable, but tends to stretch over time, and eventually rots due to oil contact... I also have a set of reel arms with a 1/2 in shaft that I picked up used, with the intention to switch over 1/2 in shafts when the PROMISED 6,000 ft shipping reels came into being (which it now appears ISN'T going to happen)... These arms use a larger tubular (hollow) polyethylene belting with a snap-in joining connector... If the 6,000 ft shipping reels don't happen, I intend to look into converting the Simplex magazines over to use this type of polyethylene belting (IF I can find it)... My rewinds use an automotive type V-belt which I have never needed to replace, but which would be available through any automotive parts source... I also have a complete booth backstage (which I bought and removed, as a spare) and the projector motors drive a flywheel with a standard automotive V-belt, which would be no problem to find...
BACK-UP AMP: I have an integrated (Mono) PA mixer/amp mounted in the rack, and fed with a DPDT switch from the solar cell outputs of the projectors, and feeding into the center channel speaker line through a HD DPDT switch... As long as I have one operative projector, a solar cell output, and a center speaker, I can finish the showing (in a worst case scenario)... I also have a dual exciter lamp (red LED's) supply which is switchable, in case of problems... Never have needed any of this (knock on wood) BUT it's damned good insurance, just in case...
TOOLS: I keep an assortment of screw drivers, Allen wrenches, pliers, a few sizes of combination box/end wrenches, a couple sizes of mechanics hammers, drift pins, soldering iron, solder, spare wire, a VOM, and some other odds and ends in the booth, and have a garage full of tools at home, if something bigger comes up...
SPARE PARTS: I have a cabinet with spare fuses for everything in the booth (and the whole theater), a few replacement plugs, etc... AND I never throw away anything like replaced sprockets, gate shoes, etc... As ROXY said, you can get anything you need in a hurry IF need be, but replacing it before it fails is a MUST... The used replaced parts can be put back in service 'til the new arrives, and you don't have to play a guessing game as to what to keep on hand...
BULBS: I keep replacements on hand for everything in the theater, and that of course, includes the booth... If you replace your Xenon projection lamps before they fail (which is a VERY good idea), the used ones can also be put back in temporary service to stay on screen til the new ones arrive...
[This message has been edited by outaframe (edited November 20, 2003).]
[This message has been edited by outaframe (edited November 20, 2003).]