[R-390] R-391 Megacycle knob

[Lester Veenstra]

No filters in 391
Its just a 390 with AutoTune


Lester B Veenstra  MØYCM K1YCM W8YCM
lester at veenstras.com

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-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net] On Behalf Of Larry H
Sent: Sunday, October 04, 2015 7:03 PM
To: Jan Lindstrom; r-390 at mailman.qth.net
Subject: Re: [R-390] R-391 Megacycle knob

Hi Jan,  If your IF filters have the adjustable caps across them, I'd try them 1st.  Make sure the caps are not at the end of the adjustment range.  The fixed silver micas across in and out might have changed value, also.  Does the R-391 have the 'killer' cap for the filters?  Has it been changed?  If not, be sure to do so.
Regards, Larry
      From: Jan Lindstrom <declind at sympatico.ca>
 To: "r-390 at mailman.qth.net" <r-390 at mailman.qth.net> 
 Sent: Sunday, October 4, 2015 8:00 AM
 Subject: [R-390] R-391 Megacycle knob
   
1    Wondering if anyone is parting out a R-391, I am in need of the megacycle tuning knob complete with the locking key and shaft assembly.
mine  came equipped with a generic spinner knob in it's place. It's easy to tune but useless when I get the Auto-Tune running. 
This  radio  #138 is now clean and functioning fine after 25+ years in dry storage but I am  now  doing a thorough cleanup and tune-up before  I attempt to fire up the Auto-Tune.
Comparing it yesterday to my Icom 7200 and it proved to be just as sensitive maybe even better and the 391  audio was  superb!

2    Audio in the 4kc position is way down, any suggestions? 

I appreciate any tips from 391 owners

73    Jan      VE2JL
                         
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