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

[Jim Whartenby]

DaveIn the dark recesses of memory, I think that quite a few R-391s were sent to Australia.  Don't remember the reason why, but I am sure that there is a good story to go along with it.
Seems that over zealous repairmen over lubricated every R-390A I have ever had.  Removing the layers of old grease using acid brushes on a stick and alternating between 409, WD-40 and a water rinse left the gears clean.  Spot lubing pivot points on the gear shafts with a small drop of synthetic oil and re-centering the MC and KC bushings on the front panel allows the gear train to rotate quite smoothly,  No more R-390A wrist!
Jim

Logic: Method used to arrive at the wrong conclusion, with confidence.  Murphy

-----Original Message-----
From: Dave Merrill <r390a.urr at gmail.com>
Cc: Military Surplus net List <milsurplus at mailman.qth.net>
Sent: Thu, Sep 8, 2022 6:12 pm
Subject: Re: [Milsurplus] Can anyone ID these Aussie HF Intercept Receivers (used in Vietnam)

Given that the R-391 autotune system takes 15 seconds to change frequency (count down to 00 000 then count up to desired preset), does it make sense to use them for monitoring multiple channels?  It would reduce operator fatigue (R-390 wrist) and perhaps that's the reason.
Most listening posts I've heard about used R-390/R-390As.
Dave N9ZC 
On Thu, Sep 8, 2022, 4:23 PM George Sliney <gjsliney48 at gmail.com> wrote:

I think you are correct.  The picture is blurry.  Especially if you blow it up.  The configuration looks more like an R-391 versus an R-390.
George
On Thu, Sep 8, 2022 at 1:35 PM Jim Whartenby via Milsurplus <milsurplus at mailman.qth.net> 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

Logic: Method used to arrive at the wrong conclusion, with confidence.  Murphy

-----Original Message-----
From: Tom B <tbryan at nova.org>
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) 
   
  ______________________________________________________________
Milsurplus mailing list
Home: https://urldefense.com/v3/__http://mailman.qth.net/mailman/listinfo/milsurplus__;!!KfGNmQmE!m39F1ERQEYMGE0a9kZK5nUMIJX6_t5qugR0xK8VRR8XVUyLVPtJGW1d2H7ZCxzoJIJUSEnpc9sK8BcU$ 
Help: https://urldefense.com/v3/__http://mailman.qth.net/mmfaq.htm__;!!KfGNmQmE!m39F1ERQEYMGE0a9kZK5nUMIJX6_t5qugR0xK8VRR8XVUyLVPtJGW1d2H7ZCxzoJIJUSEnpcGVlhUFA$ 
Post: mailto:Milsurplus at mailman.qth.net

This list hosted by: https://urldefense.com/v3/__http://www.qsl.net__;!!KfGNmQmE!m39F1ERQEYMGE0a9kZK5nUMIJX6_t5qugR0xK8VRR8XVUyLVPtJGW1d2H7ZCxzoJIJUSEnpcB_LFwvU$ 
Please help support this email list: https://urldefense.com/v3/__http://www.qsl.net/donate.html__;!!KfGNmQmE!m39F1ERQEYMGE0a9kZK5nUMIJX6_t5qugR0xK8VRR8XVUyLVPtJGW1d2H7ZCxzoJIJUSEnpcIslsowY$  ______________________________________________________________
Milsurplus mailing list
Home: http://mailman.qth.net/mailman/listinfo/milsurplus
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Milsurplus at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html______________________________________________________________
Milsurplus mailing list
Home: http://mailman.qth.net/mailman/listinfo/milsurplus
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Milsurplus at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
______________________________________________________________
Milsurplus mailing list
Home: http://mailman.qth.net/mailman/listinfo/milsurplus
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Milsurplus at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
______________________________________________________________
Milsurplus mailing list
Home: http://mailman.qth.net/mailman/listinfo/milsurplus
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Milsurplus at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20220909/c7007c8e/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Aussie HF intercept receivers.jpg
Type: image/jpeg
Size: 355813 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20220909/c7007c8e/attachment-0001.jpg>