[R-390] Low sensitivity on 7-8 Mhz band

[Barry]

Odd.  I ws noticing the same thing on my Amelco.  It's almost as if the
bandswitch isn't clocking perfectly and I'm getting just a capacitance
feedthrough signal.  I'm going to do some side-by-side comparison with my
Motorola.

Barry - N4BUQ

----- Original Message -----
From: "Leigh Sedgwick" <bipi at comcast.net>
To: "Massimo Penna" <massimo.penna3 at tin.it>; <r-390 at mailman.qth.net>
Sent: Sunday, April 16, 2006 10:13 AM
Subject: Re: [R-390] Low sensitivity on 7-8 Mhz band


> I have the same problem with my 62 Amelco that I rebuilt.  Chuck Ripple
told
> me that some R-390's exhibit that problem on the 7 mhz and he had no
> definitive explanation.  Next time I pull the radio out on the work bench
I
> plan to try and improve the situation.  If you learn anything, please pass
> it along.
>
> Thanks
>
> 73 de Mike
> K7PI
>
> ----- Original Message -----
> From: "Massimo Penna" <massimo.penna3 at tin.it>
> To: <r-390 at mailman.qth.net>
> Sent: Sunday, April 16, 2006 1:01 AM
> Subject: [R-390] Low sensitivity on 7-8 Mhz band
>
>
> > Hello everobody,
> >
> > I have a Stewart-Warner R-390A receiver. I aligned it but a low
> > sensitivity remain only on 7-8 Mhz band. What is the problem?
> > Thank you and regards.
> >
> > Massimo
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