[R-390] Special Purpose R-390

[Bill Hawkins]

OK, so the name plate was made for modifications to a real 390 or a
cheapened A version.
One can tell the difference between the A and the non-A by the location
of the antenna trimmer, among other things.

Google doesn't get anything useful for Clark Instruments.

Don, can you tell us how the set was modified?
How about a clearer picture of the name plate?
Was the front panel labeling modified other than the nameplate?

Bill Hawkins 

-----Original Message-----
From: Don Kammer
Sent: Tuesday, February 18, 2014 5:58 AM

I agree with you about the knobs.  I noticed them immediately and was
convinced they were either cosmetic or were put there as one piece each
to provide a significantly better grip, such as would be provided to a
bicycle chain.

The plate is another matter.  I think the plate was a stamped template
applied to both flavors of the R390, regardless of who actually built
them.  Yes, we know this beautiful child originally came from Collins,
but I think that any company referring to itself as Clark "Instruments"
would have some sort of inkling for the difference between an R390 and
an R390-A!  Thus, it may or may not be a Collins based on their idea
that "one size fits all" with their cavalier plate application stating
that it's either/or...!