In the good old days you would just build one. Six 300 ohm 1W resistors in parallel between a couple of sheets of PC board, tin can lids or whatever, with a coax connector mounted on one side and the center conductor attached to the opposite sheet and you're done.
Older ARRL Handbooks showed something like this---at least my 1999 does---but the new-fangled ones assume that you will buy one. Pity. I assume you're in a hurry so go to HRO and get the MFJ, it will be entirely adequate, as long as they remembered to solder the connections inside. Wes --- On Tue, 2/23/10, Jeff Hall, W6EZY <w6...@arrl.net> wrote: > From: Jeff Hall, W6EZY <w6...@arrl.net> > Subject: [Elecraft] Need to select a dummy load for K3 TX > calibration...(advice?) > To: elecraft@mailman.qth.net > Date: Tuesday, February 23, 2010, 11:13 AM > Hello all, > > I need help picking out a proper dummy load to use for > calibrating my new > K3. HRO is just up the road and they carry some of > the less expensive MFJ > dummy loads -- would these be sufficient? Not looking to > spend a lot of > money, but don't want to buy junk either. What > factors should I consider? > I'm assuming oil-cooled dummy loads are more robust, while > air-cooled loads > are more compact, but you have to be more careful when > operating or they can > burn up more easily. The K3 manual says this is just > a 5W test and I need a > load with low VSWR from 160 to 6. What is considered > "low" SWR? Anything > under 1:5? > > If I can get by with the MFJ-260 for just $40, that sounds > reasonable to me. > > 73 de Jeff, W6EZY ______________________________________________________________ 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