[Milsurplus] Can anyone ID these Aussie HF Intercept Receivers (used in Vietnam)

[joldenburg2 at new.rr.com]

A u-tube of a R-391URR in action:
(36) Auto-tune action of R-391/URR - YouTube [1]
Jon AB9AH

	-----------------------------------------From: "Michael Hanz" 
To: "Jim Whartenby", "milsurplus at mailman.qth.net"
Cc: 
Sent: Thursday September 8 2022 4:48:50PM
Subject: Re: [Milsurplus] Can anyone ID these Aussie HF Intercept
Receivers (used in Vietnam)

 Sure looks like it, Jim. I don't think I've ever seen an R-391 until
you mentioned it.
 - Mike 

On 9/8/2022 4:34 PM, Jim Whartenby via Milsurplus wrote:
      Looking at the second operator from the right, there appears to
be a cluster of four knobs just below the LINE meter. That fourth knob
would be the CHANNEL SELECTOR which would make the radios R-391s. Jim

 -----Original Message-----
 From: Tom B 
 To: milsurplus at mailman.qth.net
 Sent: Thu, Sep 8, 2022 1:43 pm
 Subject: Re: [Milsurplus] Can anyone ID these Aussie HF Intercept
Receivers (used in Vietnam)

    The photo looks strange but they they are all R-390 or R-390A.
There is something mounted above them. Maybe a TTY demodulator. I am
not sure. Tom 
  On 9/8/2022 2:10 PM, Brian Harrison wrote:
      (the gent at email address below didn’t know specifics) 



Links:
------
[1] https://www.youtube.com/watch?v=zeh5kgOeRI4

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