Harv,
Try this link, if you can't get the info there, try cbtricks.com . Is it Am
only? If it is, it is similar to the Midland 77-285, I was thinking about
it. The difference between that and the 77-290 is that the 290 has
detatchable faeplate and is SSB. Let me know what you come up with! The link
is below..
http://members.aol.com/cbmods/77-285.htm