[R-390] Need info on R-390A type or variation

[Mark Donaldson]

Navy modified receiver. This is fairly common to find and is not a factory variant but rather a modification that was performed after the receiver was delivered to the Navy.
Mark WA1QHQ 

    On Monday, April 18, 2016 6:52 PM, Steve Toth via R-390 <r-390 at mailman.qth.net> wrote:
 

 The rear panel you describe is for shipboard use.
The US Navy manuals and updates here on the R390A Frequently Asked Questions Page: http://www.r-390a.net/faq-refs.htm#US Navy  - Steve  K7PZN"Always look for a positive solution then Improvise, Adapt, and Overcome"
"Sometimes it is the people who no one imagines doing anything, who do the things that no one can imagine".....
 

      From: Norman Ryan via R-390 <r-390 at mailman.qth.net>
 To: Phil <pmills7 at comcast.net>; R-390 <r-390 at mailman.qth.net> 
 Sent: Monday, April 18, 2016 1:49 PM
 Subject: Re: [R-390] Need info on R-390A type or variation
  
Hi, Phil,
Well described!
It is a US Navy accessory from what I gather.  I have a couple sitting here idle.
73Norman


      From: Phil <pmills7 at comcast.net>
 To: R-390 <r-390 at mailman.qth.net> 
 Sent: Monday, April 18, 2016 4:44 PM
 Subject: [R-390] Need info on R-390A type or variation
  
I recently lucked into an R-390A at a hamfest less meters and
a few tubes that is dirty but restorable.  However, it is missing
the front panel tag and black spray paint has been added to the
back panel to cover any printed info.

There is a long rectangular cover about 1 1/2 inches wide that
runs across the back panel and covers up the barrier strips as well
as the power connections.  There is one larger 3-pin amphenol
military style connector in the middle labelled "power" and two
smaller 2-pin mil style connectors near each end that are not
labelled but I'm guessing might be for the two audio output
channels.

Can anyone tell me what this version was used for?

thanks, Phil
W5BVB
  
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