Ummm, if this is a real issue for some operators (and not a theoretical issue), it would seem the problem could easily be resolved with an audio transformer.
RadioShack sells one for $2.99. They don't publish the specs in enough detail to tell for sure, but it has a number of taps on the secondary, and would appear to be able to transform the impedance of most headphones into the K3's "sweet spot." Am I missing something here? a small project box with the transformer enclosed and phone jacks in and out ought to do the trick. Lew K6LMP On Feb 8, 2010, at 12:45 PM, Lyle Johnson wrote: > I didn't mean to stir up yet another controversy. I use Heil Proset > with my K3 and they work just fine, as do my Yamaha CM500. > The K3 can easily drive high-impedance headphones. > > My point was simply that *if* you have to crank up AF gain to the point > of distortion to get sufficient headphone volume, and *if* you are using > high-impedance headphones, *then* the problem *may* be related to the > headphone impedance. > > 73, > > Lyle KK7P > > > > > ______________________________________________________________ > 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
