And therein lies the reason for using 12V. It would have been easier had we gone from 6V automotive power to 28V as is used on many aircraft so manufacturers were encouraged to build generators and equipment for that voltage, but that didn't happen.
73, Ron AC7AC -----Original Message----- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Frantz Sent: Saturday, October 15, 2016 8:33 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3S QST Article It seems to me that this solution would tie the K3S++ to mains power. Being tied to mains power would impact my club's use of K3s with batteries on events like the California QSO party. (Our location does not permit generators.) I don't know how much such a restriction would shrink the K3S market. A voltage booster could be a solution. Such a device would have to be well shielded and bypassed to avoid RFI. It could either be internal to the radio or a "bump on the power cable". Such devices are available in the market and seem to work well. 73 Bill AE6JV On 10/14/16 at 5:14 PM, ksto...@ac0h.net (Kevin) wrote: >The cause for this is the use of 12V finals. It would be much improved by moving to 24 or 50V finals. > >Move the /K3s II/ to 50V finals, say a pair of MRF 150's, limited to >150 or 200W max output. Design/Sell an outboard 50V switching supply >capable of 15-20A continuous current, with a 10A 12V switcher built in >for the rest of the radio. ----------------------------------------------------------------------- Bill Frantz | Concurrency is hard. 12 out | Periwinkle (408)356-8506 | 10 programmers get it wrong. | 16345 Englewood Ave www.pwpconsult.com | - Jeff Frantz | Los Gatos, CA 95032 ______________________________________________________________ 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 Message delivered to r...@cobi.biz ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
