If you're using DC fans, why not put the two in series
instead of using the resistors? I put two 12V fans on
my pegasus heatsink and connected them that way. Very
quiet and they do the job.
Dave, VE1ADH
--- denton <denton@oregontrail.net> wrote:
> What I did to my Omni 6 is pull the speaker and
> install a small muffin fan
> in its place, as well as a second fan on the rf
> brick heat sink. A 50 ohm
> resistor in each fans B+ lead keeps the fan noise
> tolerable.
> You may want to try this....
> ----- Original Message -----
> From: "Chuck Guenther" <ni0c@earthlink.net>
> To: <tentec@contesting.com>
> Sent: Wednesday, July 13, 2005 6:44 AM
> Subject: [TenTec] Omni six-- heat related IF gain
> problem
>
>
> > For several weeks now, I've noticed a pronounced
> reduction in gain of my
> > Omni 6 after it has been on for a while. When I
> first turn on the rig, I
> > get an s meter reading of s-2 to s-3 on antenna
> noise, which degrades to
> > s-0 after the rig has been on for a while. The
> attenuation used to take a
> > few hours to kick in, but this morning I noticed
> fading out in a matter of
> > minutes. Has anyone else experienced this? I
> suspect a problem either on
> > the 9MHz board or the PBT board. Any hints would
> be appreciated.
> >
> > Thanks & 73,
> >
> > Chuck NI0C
> >
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> >
> http://lists.contesting.com/mailman/listinfo/tentec
> >
> >
>
>
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>
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