I wonder if elecraft actually does thermal and vibrational stress analysis, I've always been curious what the natural frequency of my K2 is, as well as what the rise from board to chassis is in a 71C environment :)
Matt W8ESE On Wed, May 13, 2009 at 9:16 AM, David Ferrington, M0XDF <m0...@alphadene.co.uk> wrote: > I don't understand why you are looking to upgrade over the std spec - > surely elecraft have considered all the possibilities of ambient temp > to run in - unless of course you are operation in an oven? > :-) > > -- > Study without desire spoils the memory, and it retains nothing that it > takes in. -- Leonardo da Vinci > > On 13 May 2009, at 13:11, Brian Binkley wrote: > >> Hello, >> >> I am currently in the process of upgrading the fans for the KPA3 100 >> Watt >> Amplifier module because the heatsink temperature gets too high for my >> liking. I am upgrading both fans to a fan with higher CFM output. >> Last night >> I hooked both fans up to the KPAIO module to test and see if they >> will work. >> When I am on fan power level one, the fans try to but are unable to >> start >> up. I have to bump them to start them spinning. Power level two has no >> problem spinning them up. When I went to power level four and then >> brought >> the power level to one, the fans did not have any problem continuing >> running. The fan specs can be found here >> http://www.sundialmicro.com/ipcqueen_dc_fan_606010_ball_bearing_3pin_2033_1199.html >> . >> Is there any components that I can add in line to provide the >> necessary >> power to start the fans up at power level one? > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
