+++++++++++++++++++++++++++ Date: Sun, 15 Jul 2001 12:36:25 -0400 From: kb1dxc at discovernet.net (kb1dxc) Subject: [Elecraft] Re: K2 and T4 Hi Dave, Thanks for your input regarding this issue. I ended up building the rig as per the regular specs in the manual. Although I will probably operate at 5 watts most of the time, I am sure that I will run it at full power sometimes also. I did purchase the sideband adapter but I have not put that together yet. In fact, I am not sure the rig is tuned as well as it could be. I will be getting together with another ham in my club that has also built a k2 and we are going to do the alignment process together. He wants to do his again since he now has a frequency generator which he did not have when he first did his. I have been lucky enough to have a couple of contacts with a minimal amount of time trying. My first contact was a k2 to k2 contact, that made me feel real good, hi hi. I am trying to get at least one contact on each band before I settle in anywheres, that will be the supreme test, if I can work all bands with this rig. I am sure it will happen as all bands seem to put power out with the tune button. I will not be going on hikes or anything like that, so having power available will not be an issue for me, so I ignored the 5 watt option. Thanks again for your input Dave. 73, Mike (kb1dxc) k2 s/n 02097 >Hi Michael > >I've just returned from a trip to Portugal with my K2. I had daily CW >skeds back home, being able to run 8 to 10 Watts output when 20m was a >little marginal was a big bonus. Depending on what use you intend to put >your K2 to, you might want to keep the higher power option available. > >The efficiency of the transmitter part of the K2 is based on using it at >the 10 Watt output level. As with any amateur transmitter, if you reduce >the output power by half the current drawn won't drop by half. Running a >10 Watt output stage at 5 Watts draws 30% more current than one purpose >made for 5 Watts (as per the Elecraft manual). I also run SSB with my K2 >and need the full 10 Watts for SSB use. > >Hope that waffle helps. > >Dave, G4AON and CT1/G4AON/P >K2 #1892, KBT2, KSB2 +++++++++++++++++++++++++++ From: "Dan Barker" To: "Elecraft" Subject: [Elecraft] T4 question Date: Wed, 6 Feb 2002 11:00:16 -0500 Make it pretty, level, and snug. The demensions are for sloppy winding. = If your windings are very neat, 10mm extra wire is reasonable. Remember, = there's two nuts under it, so it won't be on the board exactly, but = rather about 4mm high. There's a photo in the book. The electrons don't = care, but the covers do! Dan / WG4S / K2 #2456 -----Original Message----- From: elecraft-admin at mailman.qth.net [mailto:elecraft-admin at mailman.qth.net]On Behalf Of Nicholas Lokuciewski Sent: Wednesday, February 06, 2002 3:42 PM To: elecraft at mailman.qth.net; gary at elecraft.com Subject: [Elecraft] T4 question Dear All, K2 # 2448 is nearing completion! For T4 (binocular core), I am puzzled = by=20 the dimenions given, for cutting and stripping the wire on the core. If I use the dimensions in the manual the transformer will stand about a = centimetre of the board. It looks like the dimensions need about 10mm = taken=20 off them, ie cable length from core to tip 12mm and strip 3mm of the end = of=20 the lead. Is this right? 73 2E1LOK / M3LOK Nicholas K2 # 2448 +++++++++++++++++++ Date: Wed, 06 Feb 2002 08:02:38 -0800 From: Vic Rosenthal Organization: Transparent Software To: Nicholas Lokuciewski Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] T4 question Nicholas Lokuciewski wrote: > > If I use the dimensions in the manual the transformer will stand about a > centimetre of the board. It looks like the dimensions need about 10mm taken > off them, ie cable length from core to tip 12mm and strip 3mm of the end of > the lead. The wire lengths are given slightly longer than needed to make the winding job easier. After winding the transformer, trim them so it will set right on the board. 73, Vic, K2VCO Fresno CA ++++++++++++++++++++++++