James, the noisey internal fan does not even cool that well.
The noise is no worse than the QRM and QRN. I just try to ignore
it. Also I use an external cheap floor type fan and it does a
great job of cooling me, the Centaur, and my computer monitor.
It does blow any loose papers away. I have used these fans for
years and they keep the Centaur cool. This fan does not need
to be mounted above the Centaur. My fan just blows over the top
of the Centaur. I have 572B tubes in my Centaur also. These tubes
do not get as hot. The 572B costs more than the 811A.
Jim FitzSimons W7ANF
Quoting James Parsons <res075cz@gte.net>:
> I have a Centaur I bought new from TenTec some years ago. Because of
> interference to neighbors I have used it very little until now. I am
> now
> able to use it freely and I am enjoying it. My operation is solely CW.
>
> My problem is that durned fan! It drives me nuts and I can hear it even
> when
> using my headsets. Surely someone else has had this problem and has
> done
> something about it.
>
> I would like to hear of your modifications. I thought of a fan with less
> CFM
> mounted in the place of the original fan. But I wonder if that last
> tube in
> the row would get sufficient cooling? These tubes are no longer easy
> to
> procure, and I don't want to shorten their life too much. .
>
> I cannot use an external fan mounted on top because of my equipment
> arrangement.
>
> Thanks to all....
>
> 73 de Jim, K5ROV...
>
> James (Jim) Parsons, K5ROV, CMSgt, USAF, Ret., San Angelo, TX
> Ham for over 60 yrs. 90% CW
> k5rov@arrl.net, QCWA, ARCI, Fists, ARRL, ARMS.
> EX: W1RLA, K5FBB, K4FEO, SV0WN (CRETE), SV0WN (RHODES),
> DL4NC, DL4JP, KA2FC (JAPAN), KA2JP (JAPAN).
> JOHN 3:16
>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
|