[ARC5] Command Set Navigators

[David Stinson]

>  Now all I need is the MC-415 BCB control box dial. 
> But I wonder if any were ever actually made.  
>I know BCB dials exist for the ARA and the AN/ARC-5.  
>But SCR-274-N control box dials are noticably different...

I have seen exactly one of these 274N BCB dials,
and I gave that to a good friend some years ago for his set.
IMHO, such an installation could not have been
common because, if it were, these BCB dials would
be at least as common as the other SCR-274N dials.