[Antennas] Viking antenna tuner question

Sun Jan 13 15:45:14 EST 2008

Maybe offtopic but don't think there is an antenna tuner list.
I have a used Viking MB-V-A
It has the swr bridge installed.
I replaced the battery but the swr bridge does not work.
I'm assuming it's the normal diode type bridge and before I open it up does
anyone know the value of the diodes?
I have a manual but it doesn't indicate the value.
I know they aren't too crucial.
Anyone have experience with this?
I searched the web and came up empty.