On Wed, 31 Mar 2010 11:37:08 -0400, [email protected] wrote: >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...
I've got two BIG computer fans on top my L-7PS. Remember that the bigger the fan, the slower it needs to turn to move a lot of air. I don't know the size offhand, but these are 12v fans that would be found in a PC server cabinet, not your average PC. I have them in series running off 12 volts, and they are so quiet that I often forget and leave them on, even though the PS is literally at my feet. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://radiojim(dot)exofire(dot)net http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
