I also cool my T4XC's with a 12 volt DC fan that I run on a 6 volt DC wall-wart. Turns 1/2 speed and cools the transmitter just fine. Joe/KF0XV
________________________________ From: Dennis Monticelli <[email protected]> To: Richard Knoppow <[email protected]> Cc: drakelist <[email protected]> Sent: Fri, July 16, 2010 11:23:10 PM Subject: Re: [Drakelist] Fan on R4B I do the same thing with my R4B. You'll find that even if you slow it down significantly to allow it to run even quieter, the cooling effect is almost the same. A 5" fan moves a lot of air. Dennis AE6C On Fri, Jul 16, 2010 at 5:51 PM, Richard Knoppow <[email protected]> wrote: Its too hot in Los Angeles so decided to try the fan I made up for my T4XB on the receiver. It works like a charm. The R4B tends to run hot anyway, I put the fan on top of the cabinet, over the power transformer, blowing out. It keeps the cabinet quite cool and even the transformer stays reasonably cool. This is about a 5" AC fan just connected to the line though a power cord switch. I will have to build another so I have one for each unit. > This fan makes very little noise. I wrapped some foam type weather >stripping >around the case so it sits on the foam. This both seals it to the cabinet and >cushions any vibration. > > >-- >Richard Knoppow >Los Angeles >WB6KBL >[email protected] > >_______________________________________________ >Drakelist mailing list >[email protected] >http://mailman.zerobeat.net/mailman/listinfo/drakelist >
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