Always interested in quiet cooling. What I have used on my L4B, L7, etc. power supplies or RF decks (e.g. L4B), as well as those I have rebuilt for others, is a 220v fan that starts and runs reliably on 110v. That way no external power supply is needed. They are very quiet and bring down the temperature dramatically. Need to keep the Drakes running as long as possible...
73, Evan -----Original Message----- From: Curt Nixon <[email protected]> To: Drake Forum <[email protected]> Sent: Wed, Mar 31, 2010 10:25 am Subject: [Drakelist] Silent Fans Well..almost. Just received and installed a Silenx IXTREMA Pro Series fan in the TR4. Pictures are on the DrakeRadio Forum at Yahoo. This fan is speced at an incredible 14dBA at 32CFM..this compared to 25-30 dBA or more for most $5 fans. This one is EXTREMELY quiet. I cannot hear it running from the front of the rig. Need to get very close to it to hear it at all. It is WAY quieter than even the 24V fans running on 12V. They come in variable speed with thermister sensing included or fixed speed. I tried both. they are $13 and $11 from TigerDirect.com. The 80mm units match the final cage holes perfectly and the rubber "Pin" mounts work with no screws or other holes needed. I would not bother with the variable speed units except on solid state rigs like the TR7 or PS7. In the tube rigs, the temp is high enough that they run nearly fast all the time anyway. Of course I install them pulling air out of the cage and the result is that placing your hand on top of the case after an hour of running and it feels cold. I can't recommend these enough--if you are tired of the roar from fans in the shack--these are the answer. FWIW Curt KU8L _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist =
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