Mel, That same supply should power your KX3 quite nicely. You might even remove the series diodes if the supply voltage is no greater than 15 volts (hint - measure the no-load voltage with your DMM).
Most of those supplies are switchers, but if you have not had a problem with RF noise on your FT-817, the KX3 should not introduce any additional ones - note that noise conducted onto the DC input is quite another issue. I have not tested my KX3 with other than a clean and stiff power supply, but my experiments with DC receivers indicate that they do not do well if there is conducted RF energy riding in on the DC input. 73, Don W3FPR On 6/20/2012 6:07 PM, Mel Farrer wrote: > Well, I use a older Sony laptop supply rated at 15 VDC at 3A to run my FT817 > QRP I put two silicon diodes in series on the output. Been running for over > 5 years now. I modified a MFJ 16010-ST tuner to include a micromatch using a > couple of old subminiture battery indicator meters. Thats my QRP station > until the KX3 arrives, hi. > > > Mel, K6KBE > > --- On Wed, 6/20/12, Val <[email protected]> wrote: > > > From: Val <[email protected]> > Subject: Re: [Elecraft] Possible power supply option for the KX3 > To: [email protected] > Date: Wednesday, June 20, 2012, 1:39 PM > > > Phil, > > I modified a 300W ATX PS from my junk box 5 years ago and using it > every day since with my K2 and K3. A lot of dxing and contests, not > a single issue. > The quality of the PC PS differs too much, but a good many of them > are not worse than the other swithers. > > 73, Val LZ1VB > >> A shot in the dark..... >> >> Has anyone adapted a "standard" ATX-type computer power supply >> 12V DC output to run a transceiver (K2, VHF, etc)? I have >> one that could be used if feasible. >> >> Pro/con experiences appreciated. >> >> -- 73 de K2ASP - Phil Kane >> Elecraft K2/100 s/n 5402 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > 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:[email protected] > > 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
