Don Thanks for the reply. I have thought long about it, and decided I would rather not risk damaging my KX3 for the sake of a cheap PSU. I live too far away from the factory to risk damaging the KX3 - it cost me $ 450.00 just to ship my new KX3 to me in June.
I will leave the cheap eBay PSU for some other project, or the trash. I have plenty of other regulated, stable PSU’s that supply the correct voltage, so I will continue using them. I would never forgive myself if I damaged my KX3 by using a cheap eBay PSU. Thanks for all the replies 73 John, ZS5J On 19 Jan 2016, at 1:18 AM, Don Wilhelm <[email protected]> wrote: John, I would suggest that you put a diode in series with that supply - rated at 5 amps. That will reduce the voltage by the amount of the diode drop. Running the KX3 (or any other device) above the specified maximum voltage is done at your own peril - it may work, but it taxes the regulators and other devices. 73, Don W3FPR On 1/18/2016 3:43 PM, John Kramer wrote: > Someone on this reflector suggested a power supply off eBay, that could be > used > with the KX3 about 2 months ago. It is intended for Toshiba laptops. So I > bought one, > this is the one… > > http://www.ebay.com/itm/15V-5A-AC-Adapter-Charger-Power-Supply-For-Toshiba-Tecra-A6-A7-A8-A9-A10-Laptop-/381356162365?hash=item58ca993d3d:g:Yk0AAOSwMmBVxX22 > > <http://www.ebay.com/itm/15V-5A-AC-Adapter-Charger-Power-Supply-For-Toshiba-Tecra-A6-A7-A8-A9-A10-Laptop-/381356162365?hash=item58ca993d3d:g:Yk0AAOSwMmBVxX22> > > It terminates in the right plug for the KX3 and is rated at 15 volts at max 5 > amps, and only sells > for $ 7.79 including free shipping from Hong Kong. > Anyway, it is cheap as chips so I bought one, and it arrived today. I hooked > up to a volt meter > and see it is 15.4 volts. I know it is better for TX IMD to have higher > voltage supplied to the > KX3 rather than a voltage too low, but I am concerned that 15.4 volts may be > too much > for the KX3. I see in the KX3 manual specs, that recommended supply voltage > is 8 - 15 volts. > I would hate to hurt my KX3 with over voltage……anyone know if there would be > any short > or long term problems with running 15.4 volts to the KX3 ? It is just > slightly above the > maximum recommended supply voltage > > 73 > John, ZS5J. > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
