[Repeater-Builder] duplexer

[Ron Wright]

hi all,

I have a Phelps Dodge RFS/Celwave) 522-509 old UHF 6 cavity duplexer.  
Each cavity has one tuning rod only.

Does anyone know what type of duplexer, bpbr, bp, br, etc this critter 
is.  I am trying to tune.

73, ron, n9ee/r