[R-390] EAC Mechanical Differences

[Tom M.]

EAC has some mechanical differences from other makes.  In speaking with the chairman of EAC, I was informed that they received approval from signal corp to allow spices in some of their wires. This allowed them to wire the modules "in the open" and then assemble the sides together.  If you look closely and compare EAC IF decks for instance to other makes, you'll see that the sheet metal is shaped differently and there is at least one splice.  There is also a splice behind the front panel.
  I  borrowed these two photos from the internets.  Note the second pic (EAC) has the metal as two L shaped halfs and you can see a wire splice on the pink wire running near the BFO.  The SW metal in the second pic is shaped differently.  How can this be if they all used the same drawings? 
These changes are reflected in the drawings used by EAC and they got approval.
 
http://home.earthlink.net/~chestnutl/R390A-2.html

http://r-390a.us/images/IF_Recap.jpg

As far as performance differences I've never noted any.  All receivers met specs.

73 Tom N5OFF

--- On Sat, 3/27/10, Ben Loper <brloper at gmail.com> wrote:

> From: Ben Loper <brloper at gmail.com>
> Subject: [R-390] Motorola vs EAC
> To: "William J. Neill" <wjneill at consolidated.net>
> Cc: "R-390 at mailman.qth.net" <R-390 at mailman.qth.net>, "DJED1 at aol.com" <DJED1 at aol.com>
> Date: Saturday, March 27, 2010, 1:56 PM
> Motorola vs EAC
> Any opinions on which is a better quality? I was looking to
> purchase  
> one and it has come down to this twol. The EAC has an
> etched panel and  
> the Motorola has a sik screen panel Thanks
> 
> 
> “If you desire to be more heavenly minded, think more of
> the things  
> of heaven, and less of the things of earth.”
> 
> 
> On Mar 27, 2010, at 13:03, "William J. Neill"  
> <wjneill at consolidated.net>
> wrote:
> 
> > I remember those ads as well as those of Columbia
> Radio Supply (I
> > think that was the name of the outfit).  I
> clipped a lot of them for
> > reference purposes and they're buried with all of
> boxed technical
> > manuals and Hollow State newsletters.
> >
> > Bill Neill
> > Conroe, Texas
> >
> >
> > On Mar 27, 2010, at 12:40 PM, DJED1 at aol.com
> wrote:
> >
> > The only hint I have is a Ted Dames ad clipped from an
> old QST.  I
> > clipped
> > it because it offers R-390As just as I I bought from
> Ted in the  early
> > '70s.  In the ad, he offers "excellent
> overhauled" radios for $595,
> > which is
> > what I purchased. In the ad, he also offers "factory
> new sealed  box
> > (3 only)"
> > for $1150.  So there is some provenance for the
> Ebay  radio.   
> > Thought I
> > can't date the clipping, it assuredly is from the
> '70s,  when R-390
> > prices were
> > high.
> > Ed  W2EMN
> >
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