I assume it has a 6khz xtal filter. One thing you might try is
pulling that filter and wiring a cap across the active terminals of
the empty filter slot and see if that makes a difference in the
receive signal strength.
Barry N1EU
On Fri, Jun 1, 2012 at 10:53 PM, Mike Bryce <prosolar@sssnet.com> wrote:
> Boys and girls,
>
> the Paragon project I picked up at Dayton is coming to a end.
>
> Got the display working, the PA is now doing 100 watts on all bands. Audio on
> SSB is now fine.
>
> but there is one nagging problem I can't seem to locate----it's the AM rec
>
> It does rec AM, but the signal is quite a bit lower than on SSB
>
> tune in WWV at 10.000
>
> On AM, very little signal, won't move the s-meter
>
> On USB/LSB 20+ on the s-meter
>
> The 4066 is working, there's not much coming into it in the AM mode
>
> Pulled the IF/AF board, checked the AM IF and DET transistors, all just fine.
>
> while I was at it, I put in a new 10 mfd cap in the slow AGC circuit as well.
>
> I can't seem to find a fault, so I'm wonder, is this the way the paragon
> works on AM? Doesn't seem right to me.
>
> Any ideas or feedback would be welcome
>
> mike, wb8vge
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