> I'm sure this is all true, but in certain situations, a muffin fan in
> suction mode can be a great help. I got a couple of 3" diameter 115 volt
> muffins, wired them in series, put one behind my transceiver to help
> exhaust air from the final heat sink, and the other atop the power supply
> section of my SB-220 to augment the main muffin fan which blows in across
> the tube envelopes. In both instances, temperatures went down noticeably,
>
> and because of the reduced voltage the fans are inaudible.
>
//What "reduced voltage" are you talking about? I'd like to hear
more about operating AC fans on reduced voltage, I was never successful
doing this. (I do operate DC brushless fans on "reduced voltage" to reduce
rpm and noise, and this works, with reduced airflow, of course.) -WB2WIK/6
> 73, Pete N4ZR
>
> Check out the World HF
> Contest Station Database at
> www.pvrc.org
>
>
>
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
|