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

[Barry]

I believe that's a Navy mod.  It's documented somewhere but I don't know exactly where at the moment.

Thanks,
Barry - N4BUQ

----- Original Message -----
> From: "Phil" <pmills7 at comcast.net>
> To: "R-390" <r-390 at mailman.qth.net>
> Sent: Monday, April 18, 2016 3:44:18 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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