Steve Smith, W4HKL
Below are some pictures of duplexers.
UHF? 900 Mhz?
A set of low power duplexers.
Homebrew duplexers made from old fire extinguishers!
Wikipedia : Duplexer
Repeater Builder: Antenna Systems
Repeater Builder - Desense Testing using an Iso-Tee
(Detailed interior diagram of a duplexer)
(Includes diagram of duplexer interior)
I hope this collection on information assists anyone looking to further their understanding of duplexers.
(The links, photos, and information used above represents the hard work and dedication of many individuals. I make no claim of ownership or creation of those links, files, or information. This information is presented purely for the advancement of the Amateur Radio Hobby. If any of the authors has issues with this information being used here without claim of authorship by myself only for the advancement of the hobby, then contact me and I will immediately remove the offending item.)