[R-390] R-390(/URR) ID

[Al Parker]

Hi folks,
    I have 2 R-390's that came with no tags.  For a long time I thought
that Collins built them all, but know that's not right.  I have a Motorola
tag (thanks Boomer, it's finally done).  I know modules in the "A's" are
pretty well marked, but haven't noticed any mfg info on these.  Is it
correct, or just presumptuous, to assume that without other info that they
were mfg'd by Collins?  Or, how do you tell?
tnx, 73,
Al, W8UT
New Bern, NC
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