[Collins] antenna/station selector

[Jim Mornar]

Hi,

I've acquired a collection of Collins Amateur radios as well as a variety of
Collins avionics equipment.  One item I do not find any info on is an item
that is the size of a S line speaker but it is actually an antenna and radio
selector.  It can select up to 5 radios and 5 antennas.  It does have a
built in speaker as well.  Nice item!

Anyone know who might have produced this?  There are no manufacturer numbers
or names on it, but it does say "manufactured in the UK".  

Thanks,

Jim N9TK