Dave, Use the 13.8 volt supply. That is close to the "typical" voltage for a vehicle battery while being charged by the alternator. Most amateur gear is designed for that voltage - and we often refer to it as a "12 volt supply" even though it is really 13.8 volts - like we refer to a 12 volt (6 cell) lead acid battery even though it typically produces 13.2 volts when fully charged (2.2 volts per cell).
Typical maximum voltages for Elecraft gear go as high as 15 volts, and anything up to that level can be used. The higher voltages result in lower transmit IMD, so they are recommended over lower voltages. 73, Don W3FPR On 9/14/2011 8:01 PM, David Burmaster wrote: > Hi > > next year, when i operate my new KX3 and KXPA100 from my home, what power > supply will i need? > > 115VAC to +13.8VDC ? > > 115VAC to +12VDC ? > > 115VAC to +12VDC and +5VDC ? > > other? > > ______________________________________________________________ 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
