[R-390] EAC R-390 factory modification that incorporates USB/CW/LSB

[TChirhart]

Tim and the group; 
I did not see the interior of the R-390 as it was packed away with other
items stacked on top and on all sides. I could recognize the front panel if
someone has a photo of this type.
73
Tom K4NCG

-----Original Message-----
From: Tim Shoppa [mailto:shoppa_r390a at trailing-edge.com] 
Sent: Sunday, June 03, 2007 5:34 PM
To: sparks at codepoets.com; R-390 at mailman.qth.net
Subject: Re: [R-390] EAC R-390 factory modification that incorporates
USB/CW/LSB

"TChirhart" <sparks at codepoets.com> wrote:
> Does anyone know any anyR-390's that were modified under contract that
> removed the BFO on/off switch and replaced the BFO pitch control with one
> control?  I saw an R-390A, EAC contract that had this modification. A
> vertical 1 inch by 3 inch matching grey panel plate was installed over the
> two switches and only one control remained. It had a LSB CW USB position
> where the BFO pitch control previously was located. The owner indicated
that
> this was a rare factory modification. Sorry no photos were taken. So was
> there ever a modification of this nature that was not an aftermarket add
on?
>
> 73
>
> Tom K4NCG

If this has a 6U8 added as well behind the front panel, isn't this
the "Mexican Military" version by Columbia Electronics?

Tim.