UV (BB / Bilirubin) Tubes?

FotoDave@aol.com
Thu, 06 Nov 1997 18:42:50 -0500 (EST)

Does anyone know what Bilirubin tubes are for? I am looking at a used
exposure unit that has 2 F20T12/BB tubes in it. My catalog says BB stands for
Bilirubin, but I don't know anything about it. Can they be used to expose
dichromate sensitized material?

I suppose I can always replace the tubes if they are not usable in my
application, but if they are ok, I can save a little too. :)

Thanks in advance for any information!

Dave