A thermostatic fan controller. Look at the one by Paul, W1GHZ. It is easy to add to a SDR1K. Reverse the high temp LED so it is on the back of the PCB and mount it to the left of the fan on the inside. http://www.w1ghz.org/small_proj/small_proj.htm
http://www.w1ghz.org/small_proj/fan.zip -Tim -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peter G. Viscarola Sent: Saturday, March 29, 2008 4:48 PM To: flexradio@flex-radio.biz Subject: Re: [Flexradio] Fw: SDR-1000 fan mod question > >I used a nibbling tool to cut out all the metal in the enclosure in the >direct path of the fan. One big octagonal hole instead of many small >ones. Reduced noise a great deal. Also tried removing the filter. > Coincidentally, I was fretting over the fan noise from my SDR-1000 also recently and I did this same mod last weekend (using a Dremel tool). I expected a really significant noise reduction, but didn't think the result was THAT great. But the mod certainly was super easy. Anybody else have any good fan noise reduction ideas? de Peter K1PGV _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
