Quote Originally Posted by nsmith01tx
Thanks for the info ... mine is set up for 35mm and nothing larger (85 & 130 condensers), I'll keep an eye on ebay prices - especially the 200 & 240's.
So, I have one unidentified bulb ... I'd heard something about their being expensive, are they now unobtainable?

Yes the Thorn bulbs are no longer available. Lee Carmichael has found another bulb that will work. You might message him for the details.