What's wrong with the xenon lamp circuitry? It should be a constant current source, combined with a little high voltage supply to strike the lamp. When the high voltage pulse makes the thing arc over, the plasma between the contacts is conductive so all of a sudden the thing turns into a low resistance device and it only takes a couple hundred volts for the arc to be sustained. The constant current source means that the thing remains at the correct operating point as the electrodes slowly burn away.
I _think_ that the EX-2000A uses trick magnetics to do the job... it's a big saturable reactor that acts as an AC constant current source, then rectifiers to turn it into DC, and then a filter capacitor made with multiple capacitors and inductors in a chain to eliminate the ripple. You could talk to Steve Guttag, I know he has worked on those occasionally. There isn't much to fail non-catastrophically. --scott _______________________________________________ FrameWorks mailing list FrameWorks@jonasmekasfilms.com https://mailman-mail5.webfaction.com/listinfo/frameworks
