[Collins] diode help needed

[kb9wlf]

Hello everyone,
   Hopefully one of you can help me. I need 3 diodes that go in a 30S1. In
the 30S1 manual on page 6-24 it has a CR205, CR207, and CR208 listed. Figure
item 22,23,24. In the part number, the description is part #50, which says 2
recitfier,MTLC (V84970) 353-0153-000. All three parts are the same. In the
schematic it shows just a single diode. Does anyone know the values on this?
Or what I can safely use to replace these?
     Thanks,
        Carl    KB9WLF