[R-390] nonlinearity in 1st IF-R-390A

[Barry]

Pretty rewarding, isn't it.  Good feeling to get one of these fine radios working again.

Congratulations!
Barry - N4BUQ

----- Original Message -----
> From: wb3fau55 at neo.rr.com
> To: r-390 at mailman.qth.net
> Sent: Friday, August 26, 2016 3:54:14 AM
> Subject: [R-390] nonlinearity in 1st IF-R-390A
> 
> Larry  and others-  So I have peaked the 1st IF @  7mc band.  Come down to
> the BC  band  and  sensitivity is  only fair at best.  So I  repeak it  at
> 550kc.   So I remember someone said about the ferrite  slugs.  I had one
> green and 2 others were red.   So I put in 3 green slugs and  repeaked it
> @550kc.  That got it!  Stations barely hear are now  good signals.  Also now
> good on 7mc.  I am using a wire in my basement.  A good shielded challenge
> antenna.  I am happy now,   it acts like a 390A as far  as picking up weak
> signals.   73s Russ.
>    
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