Did I read that the two finals in the KPA500 were push-pull? 73, Guy
On Tue, Apr 20, 2010 at 2:21 AM, Joe Subich, W4TV <li...@subich.com> wrote: > > >> I'm just stating my opinion that, in the big picture, the >> price point for the KPA500 seems a bit on the high side for >> what you get. Now seeing photos, its certainly better >> looking than my ALS600. And the build quality is probably >> better than my Ameritron product, but for that power level, >> and taking into account the value of my time if I had to >> build it, the cost is a bit high in my opinion. > > Taking this one step further, the KPA-500 may have an updated > design - after all the ALS-600 is a close copy of Granberg's > 20 year old design (Motorola Engineering Bulletin # 104) - but > other than the microprocessor control in the KPA-500, the bill > of materials should be fairly similar for the KPA-500 and > the ALS-600. > > The FETs in the KPA-500 will be slightly more expensive (2 x $87 > in the KPA-500 vs. 4 x $36 in the ALS-600 for Q=1000) but the > differences should be offset at least in part by easier assembly > and calibration. I would expect the KPA-500 to sell for no more > than 20% above the street price of the ALS-600 with linear supply. > Any more than that is difficult to justify ... after all, a watt > is a watt. > > 73, > > ... Joe Subich, W4TV > > > > >> -----Original Message----- >> From: elecraft-boun...@mailman.qth.net >> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Luis V. Romero >> Sent: Monday, April 19, 2010 11:51 PM >> To: 'Jim Brown' >> Cc: 'Elecraft' >> Subject: [Elecraft] : Re: News from Visalia! (:-)) >> >> >> I wrote that statement, Jim: >> >> I'm just stating my opinion that, in the big picture, the >> price point for the KPA500 seems a bit on the high side for >> what you get. Now seeing photos, its certainly better >> looking than my ALS600. And the build quality is probably >> better than my Ameritron product, but for that power level, >> and taking into account the value of my time if I had to >> build it, the cost is a bit high in my opinion. >> >> I'm not in this to have a pretty shack to impress my friends >> with lots of lights, gingerbread and ham status symbols. If >> I were into that, I would take out a 2nd mortgage and buy a >> 7800/PW1. :) >> >> Maybe I'm "cheap", maybe not. After all, I do own a rather >> well equipped K3. But with two kids in college and a >> mortgage payment in today's economy, what I have does an >> admirable job. I did have to do "final QC" on my ALS600, and >> I did have to integrate a band decoder to it to switch bands >> from the radio, and I did have to install Phil AD5X's >> marvelous little QSK board, but the K3/ALS600/MFJ998 >> combination I currently operate does exactly what it needs to >> do with little fuss and surprisingly high reliability at a >> very reasonable price point. >> >> While its true that you get what you pay for, as I used to >> say when I was in TV and purchased EFP cameras instead of the >> 5 times more expensive studio versions of the same thing for >> my station. "Nobody at home can see the difference". >> >> It would be nice to have a matching amp and panadapter to go >> with my K3. The Panadapter is well priced for what you get, >> what it is, and for its computer-less feature set, and I will >> probably end up with one of those next year. >> >> The KPA500, in my personal environment, is not. >> >> Again, my opinion, and your mileage will indeed vary. >> Matching boxes are not high on my priority list because, >> well, "You cant hear the difference at home". >> >> -lu-w4lt- >> >> >> Date: Mon, 19 Apr 2010 09:59:58 -0700 >> From: "Jim Brown" <j...@audiosystemsgroup.com> >> Subject: Re: [Elecraft] News from Visalia! (:-)) >> To: "Elecraft" <elecraft@mailman.qth.net> >> Message-ID: <20100419170000.2a58c58...@gw1.nlenet.net> >> Content-Type: text/plain; charset="us-ascii" >> >> On Sun, 18 Apr 2010 16:16:58 -0400, Terry Posey wrote: >> >> >ALS600 with the Linear Power supply, AD5X Full Break In mod and an >> >external bandswitching accessory plus an MFJ998 would come in >> >considerably under the $2,000 price. >> >> Do I understand that you are equating MFJ with Elecraft? >> That's quite a >> stretch! While I have great respect for W8JI's engineering, >> that does not >> extend to MFJ's manufacturing, and Ameritron has common >> ownership with MFJ. >> :) >> >> I can also buy at least twenty different models of 100 watt >> HF transceiver >> for much less than the cost of a K3. Yet I OWN two K3s. >> >> I just returned from Visalia. The exhibit hall included large booths >> showing Icom and Yaesu rigs. The Elecraft booth was JAMMED >> from the minute >> the doors opened until they closed. The Yaesu and Icom booths >> had only >> modest traffic, and were oftn next to deserted. >> >> 73, >> >> Jim K9YC >> > > > ______________________________________________________________ > 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 > ______________________________________________________________ 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
