This is an easy question to answer.
Shure has scanned (PDF) their User Guide library and placed these in
the Support section on their web site.
Shure 450 Series II - Product Page
Shure 450 Series II - User Guide
Shure 450T User Guide -- Discontinued model (3 options)
These microphones used the Shure R96 Lo-Z (~ 200 ohm) microphone element.
Use the Owner's Manuals for your Radios to complete the wiring of this microphone.
Last edited by W9GB; 05-28-2012 at 05:32 PM.
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