[R-390] R390A- no sigs-4 to 8mc.

[Roger Gibboni]

Well, if you've been working on it for weeks, you've probably tried these
things but I would try:

2nd LO oscillator frequencies
Mechanical line up of RF rack cams---see pic in the manual

You didn't say how it worked on the other bands. Is the sensitivity good?
Less than a few microvolts? If it is good elsewhere, that usually means the
IF and audio are fine--not that this would be an audio problem.

Roger WA3YTM

On Mon, Feb 2, 2009 at 9:55 PM, Barry <n4buq at knology.net> wrote:

> It would seem that's something in or around one of the IF transformers.  A
> single crystal wouldn't take out a range of frequencies and the 17mc
> oscillator would take out everything below 7mc so I'd figure an IF
> transformer.
>
> Barry
>
> ----- Original Message -----
> From: <wb3fau at att.net>
> To: <r-390 at mailman.qth.net>
> Sent: Monday, February 02, 2009 8:47 PM
> Subject: [R-390] R390A- no sigs-4 to 8mc.
>
>
> >I have been  beating my brains  on this receiver for weeks.  I am ready to
> >give  it up  for adoption.  This was  a put together project.  From
>  pieces
> >all  over the country.  It does work  on the other  bands.  Thanks for
> your
> >advice- Russ.
> >
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