[time-nuts] OT: Need datasheets on photomultiplier tubes

[ed breya]

I just picked up a bunch of nice apparently "new" condition Photonis 
brand PMTs, models XP3312/SQ, XP3212/SQ, XP5312/SN1, and XP5212/SN1. 
I found their website but it appears they don't make PMTs anymore, 
and have no info on their own former products.

Searching around for the XP3312 so far, I couldn't find anything 
except people trying to sell them, and a partial datasheet for the 
similar XP3214.

Does anyone know where to find the data on these, or what may have 
become of the product line? I assume it was sold to a competitor. 
Also, there may be equivalent or cross-referenced model info available.

Ed