Re:Power supply?

[Kirk Brown-2]

I'm using a new Astron RS-20A. I used it during the build/test phase
and now operating. It is overkill for the stock K2, but when I
eventually build the amplifier, I'll need it. I know lots of guys use
gel-cell batteries to power their K2s. Maybe somebody more
knowledgeable about the K2s power requirements can speak up about
using other sources like computer power supplies, etc.

73, Kirk

KD6TVH


On 10/1/06, [hidden email]
<[hidden email]> wrote:

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> Today's Topics:
>
>    1. Re: K1 VFO range (Larry)
>    2. Re: K1 VFO range (Sandy W5TVW)
>    3. KX1/pm in the Garden ([hidden email])
>    4. K2 weird behaviour when receiving through SSB filter
>       (Arie Kleingeld PA3A)
>    5. CW 45-70WPM (RJD)
>    6. Re: KX1/pm in the Garden (Leigh L. Klotz, Jr.)
>    7. Re: CW 45-70WPM ([hidden email])
>    8. Garry Brisbane - unblock my response (Don Wilhelm)
>    9. Gamma Research Very Small Switching Power Supply ([hidden email])
>   10. Re: Gamma Research Very Small Switching Power Supply (Karl Larsen)
>   11. Power supply? (Justin Croonenberghs)
>   12. Elecraft CW Net Announcement (Kevin Rock)
>   13. R: [Elecraft] CW 45-70WPM (Alessandro Santucci - I0SKK)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 30 Sep 2006 06:30:34 -0700
> From: Larry <[hidden email]>
> Subject: Re: [Elecraft] K1 VFO range
> To: Mike Morrow <[hidden email]>
> Cc: [hidden email]
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Mike Morrow wrote:
> > Larry wrote
> >
> >
> >> I am building the K1 with the 4 band filter board. I am at the step
> >> where I must decide which VFO range to choose, 150 kHz or 80 kHz.
> >> I would like to hear from those who have built this receiver and why
> >> they made the choice they did.
> >>
> >
> > Larry,
> >
> > I've used the 170 kHz (that's what you'll actually get) VFO span on my K1 for the last five years.  With the small mod described below, I find it very easy to control.  It allows me to cover all of the 40m CW band, and to get 10 MHz WWV on the 30m band.  It also allows coverage of most of the CW portion of 15m, which will be more valuable when the solar cycle starts to pick up again in a few years.  You'll be able to tune about 20 kHz into the lower part of the 40m phone segment.  Since the K1 receiver always functions in LSB mode, it would be possible to have cross-mode QSOs at the lower end of 40m, should the need arise.
> >
> > You will get responses stating how quickly the K1 tunes with the larger span, but 17 kHz/turn is *not* a very rapid tuning rate.  What I think most of these folks are actually experiencing is a problem that results from the the VFO potentiometer shaft having very very little resistance to rotation.  It is very easy to cause unintended dial adjustment as you remove your fingers from the knob.  With a 80 kHz span, the effects of this are far less apparent.  The solution is simple.  Get a sheet of thin felt material and cut several circular, holed, "washers" which can be laid around the VFO pot shaft, between the back of the VFO knob and the front of the panel.  Add just enough layers until you get a very slight resistance to motion, while the knob still remains easy and smooth to turn.  Then it will be very easy to let go of the knob without introducing unwanted changes.
> >
> > I would never go back to 80 kHz.
> >
> > 73,
> > Mike / KK5F
> > K1 #175
> >
> >
> Thanks for the info. With what you have said along with other responses
> I am going to set up my K1 for 170 kHz.
>
> Larry
> KB5DXY
>
>
> ------------------------------
>
> Message: 2
> Date: Fri, 29 Sep 2006 20:02:13 -0500
> From: "Sandy W5TVW" <[hidden email]>
> Subject: Re: [Elecraft] K1 VFO range
> To: "Larry" <[hidden email]>, <[hidden email]>
> Message-ID: <000401c6e498$e9710d20$d69ecdd1@s0023531634>
> Content-Type: text/plain;       charset="iso-8859-1"
>
> I built mine originally for 80 khz.  With the bands changing and wanting coverage past 7080 on 40
> meters, I redid mine for 150 Khz.  It is a bit toucher to tune now but much better coverage.  I have
> a 2 band card I built for 160 and 80 meters which resides in my K1 with the coming of good
> conditions on 160.
>
> 73,
> Sandy W5TVW
> ----- Original Message -----
> From: "Larry" <[hidden email]>
> To: <[hidden email]>
> Sent: Friday, September 29, 2006 5:33 PM
> Subject: [Elecraft] K1 VFO range
>
>
> | I am building the K1 with the 4 band filter board. I am at the step
> | where I must decide which VFO range to choose, 150 kHz or 80 kHz. I am
> | new to HF and don't have the experience to make an educated choice here.
> | I would like to hear from those who have built this receiver and why
> | they made the choice they did.
> |
> | I have tried searching the archives but for some reason I am not getting
> | any hits.
> |
> | Thanks for your replies,
> |
> | Larry
> | KB5DXY
> | _______________________________________________
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> |
> |
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>
>
> ------------------------------
>
> Message: 3
> Date: Sat, 30 Sep 2006 10:02:48 EDT
> From: [hidden email]
> Subject: [Elecraft] KX1/pm in the Garden
> To: [hidden email]
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset="US-ASCII"
>
>    This morning i will be out enjoying the scenery in the famous Garden of
> the Gods Park in Colorado Springs, CO. i will be on 14060 +/- using my KX1 with
> a 10 foot whip while out hiking around the park. 9/30/06 Op times estimated to
> be 1615 to 1700z.
> Paul  w0rw/pm
> --------
>    The Garden of the Gods Park has an abundance of plant and animal life
> thoughout its 1,340 acres, 8 miles of trails, as well as the magnificent red
> sandstone rock formations, for which the Garden is best known. Many of these were
> generated by really big earthquakes and sculpted through time by erosion. The
> park is very popular and has about 1 million visitors each year. Maybe you have
> been there, can you remember the Kissing Camels, Balanced Rock, Ship Rock,
> Praying Hands, The Scotsman, or the face of Chief Manitou on the side of Gray
> Rock?
>    i will have a special 'GOG' QSL Card  available, This is the most
> beautiful park in the State of Colorado.
>    For more park details on line see http://www.gardenofgods.com/parkinfo/
> or http://www.co-trading-post.com/tp_html/gar-hist.htm
>
>    W0RW/pm/KX1 will be Pedestrian Mobile (Peripateticus Mobilus Elecraftus)
> hiking around in the park using a 10 foot whip and a 13 foot counterpoise.
> There aren't too many overhanging trees to snag my antenna so this should be 'a
> walk in the park'.
>    i will be using the great 300 foot tall granite monoliths as reflectors to
> the east and west as i walk around.
>    i will be totally powered by those exploding Sony LiIon cells.
> Paul
> [hidden email]
>
>
> ------------------------------
>
> Message: 4
> Date: Sat, 30 Sep 2006 16:21:43 +0200
> From: "Arie Kleingeld PA3A" <[hidden email]>
> Subject: [Elecraft] K2 weird behaviour when receiving through SSB
>         filter
> To: <[hidden email]>
> Message-ID: <001001c6e49b$c27c2ee0$9600000a@PChuiskamer>
> Content-Type: text/plain;       charset="us-ascii"
>
> Guys,
>
> Here a problem I don't understand.
> K2 # 3612 with:
> NB
> SSB
> 20W intrnal tuner
>
>
> The problem:
> When listening on SSB filter OPT1, 40m band and antenna connected, a bit
> of bandnoise is present. The S-meter is on S 5-7 or so with no signals
> around.
> Signals are clear. When they are strong the S meter functions as it
> should with those signals. With no signal meter drops back to S 5-7.
> Switching in the the other filters (width 2.12, 1.87, 1.78) at that time
> (no signals present) makes the S-meter drop to S 0-1 and bandnoise is
> more audible and S-meter flickering on QRN and so, as it should I think.
>
>
>
> It seems that something is triggering the AGC when I switch in the OPT1
> filter, but I cannot figure out what it is and why.
> The funny (?) thing is that if using the OPT1 filter, the s-meter reacts
> to switching off the pre-amp and switching in the attenuator (as
> expected)
> Disconnect the antenna and the s-meter also drops to S 0.
>
> I've taken out the NB and the tuner: no change in this behaviour.
>
>
> Sure in need of good advice.
>
> Thanks in advance.
>
> Arie PA3A
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Sat, 30 Sep 2006 17:31:11 -0000
> From: "RJD" <[hidden email]>
> Subject: [Elecraft] CW 45-70WPM
> To: <[hidden email]>
> Message-ID: <[hidden email]>
> Content-Type: text/plain;       charset="us-ascii"
>
> Does CW 45-70WPM Mp3 practice files exist anywhere to learn the morse code?
>
> ARRL MP3 practice files only go to 40WPM.
>
> Need to start higher to attain a 35-45 wpm base.
>
> TIA.
>
> DICK, NJ9K
>
>
>
> ------------------------------
>
> Message: 6
> Date: Sat, 30 Sep 2006 11:38:11 -0700
> From: "Leigh L. Klotz, Jr." <[hidden email]>
> Subject: Re: [Elecraft] KX1/pm in the Garden
> To: [hidden email]
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> I worked Paul for a 559 from his KX1. I was running my KX1 at 2W into a
> hamstick on top of the car, parked at the Winterlodge Skating Rink in
> Palo Alto. I gave Paul 539. There was some QRN from nearby machinery. If
> you do a Google image search on "garden of the gods" my pix are the
> first hit.
> Leigh/WA5ZNU
>
>
> [hidden email] wrote:
> >    This morning i will be out enjoying the scenery in the famous Garden of
> > the Gods Park in Colorado Springs, CO. i will be on 14060 +/- using my KX1 with
> > a 10 foot whip while out hiking around the park. 9/30/06 Op times estimated to
> > be 1615 to 1700z.
> > Paul  w0rw/pm
> > --------
> >
>
>
> ------------------------------
>
> Message: 7
> Date: Sat, 30 Sep 2006 23:06:34 +0100
> From: [hidden email]
> Subject: Re: [Elecraft] CW 45-70WPM
> To: [hidden email]
> Message-ID: <3734062330092006@orion>
>
> The program MorseGen on my website will generate MP3 practise files at up
> to 60WPM. It's free, but you are welcome to donate if you feel that
> programmers deserve to eat.
>
> Julian, G4ILO. K2 #392
> G4ILO's Shack: www.g4ilo.com
>
>
> "RJD" <[hidden email]> wrote:
>
> Does CW 45-70WPM Mp3 practice files exist anywhere to learn the morse code?
>
> ARRL MP3 practice files only go to 40WPM.
>
> Need to start higher to attain a 35-45 wpm base.
>
> TIA.
>
> DICK, NJ9K
>
>
>
>
> ------------------------------
>
> Message: 8
> Date: Sat, 30 Sep 2006 18:41:56 -0400
> From: "Don Wilhelm" <[hidden email]>
> Subject: [Elecraft] Garry Brisbane - unblock my response
> To: "Elecraft reflector" <[hidden email]>
> Message-ID: <[hidden email]>
> Content-Type: text/plain;       charset="iso-8859-1"
>
> Sorry for the bandwidth folks, but for safe computing reasons, I do not
> respond to those spam messages asking me to click a link to get unblocked.
> If you send me personal email and wish a response, please set your filters
> before sending so you can see my response.
>
> 73,
> Don W3FPR
>
>
>
>
> ------------------------------
>
> Message: 9
> Date: Sat, 30 Sep 2006 19:10:25 EDT
> From: [hidden email]
> Subject: [Elecraft] Gamma Research Very Small Switching Power Supply
> To: [hidden email]
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset="US-ASCII"
>
> Just got my October issue of CQ and saw a review of this very small power
> supply made by Gamma Research, model HPS-1a.  It is 3.37 X 1.55 X 5.25 inches,
> rated at 13.8 VDC, 22 amps at 25% duty cycle and 5 amps continuous, and weighing
> only 1.25 lbs.  If you do not get CQ, then the company's web site
> (www.gammaresearch.net) provides information.
>
> Has anyone tried this with a K2/100 rig?
>
> 73,
> Henry - K4TMC
>
>
> ------------------------------
>
> Message: 10
> Date: Sat, 30 Sep 2006 18:10:38 -0600
> From: Karl Larsen <[hidden email]>
> Subject: Re: [Elecraft] Gamma Research Very Small Switching Power
>         Supply
> To: [hidden email]
> Cc: [hidden email]
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> [hidden email] wrote:
> > Just got my October issue of CQ and saw a review of this very small power
> > supply made by Gamma Research, model HPS-1a.  It is 3.37 X 1.55 X 5.25 inches,
> > rated at 13.8 VDC, 22 amps at 25% duty cycle and 5 amps continuous, and weighing
> > only 1.25 lbs.  If you do not get CQ, then the company's web site
> > (www.gammaresearch.net) provides information.
> >
> > Has anyone tried this with a K2/100 rig?
> >
> > 73,
> > Henry - K4TMC
> > _______________________________________________
> >
>     Hi Henry, you can buy a power supply which is more powerful and I
> use daily for a FT-857D for SSB and CW which is made by MFJ. It is the
> MFJ-4125 which is rated at 25 Amps all the time and it SAYS "no noise on
> all Ham bands", and it sells for $100.00.
>
>     Your power supply doesn't even mention power supply noies.
>
> 73 Karl K5DI
>
>
>
> ------------------------------
>
> Message: 11
> Date: Sun, 1 Oct 2006 04:47:11 +0430
> From: "Justin Croonenberghs" <[hidden email]>
> Subject: [Elecraft] Power supply?
> To: [hidden email]
> Message-ID:
>         <[hidden email]>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> My Elecraft arrived! It's so new and shiny, I haven't even found the
> serial number yet! Happy happy happy! Joy joy joy!
>
> Now to power the thing...
>
> Any recommendations on power supplies? I've got a 12v power supply for
> a pair of powered speakers...is this sufficient for assembly purposes?
> After all, I can't operate just yet.
>
> 73, (just learned what that means...n00b)
>
> --
> Justin "C++12" Croonenberghs
>
>
> ------------------------------
>
> Message: 12
> Date: Sat, 30 Sep 2006 23:09:13 -0700
> From: "Kevin Rock" <[hidden email]>
> Subject: [Elecraft] Elecraft CW Net Announcement
> To: Elecraft <[hidden email]>
> Message-ID: <op.tgqbdnbs468m87@odysseus>
> Content-Type: text/plain; format=flowed; delsp=yes;
>         charset=iso-8859-15
>
> Good Evening,
>     This evening I got my telescope out of storage and dusted it off.  I
> wanted to see if I could find Uranus near lambda Aquarius.  I put a 2x
> Barlow in one pocket, my homemade LED light in the other, and carried my
> telescope to the clearcut above me.  Pegasus was easily found due to its
> bright, square asterism.  To get my mind back into viewing the night sky
> through a telescope I star-hopped to M31 and M32.  Wow am I rusty!  But I
> was competing with a half moon about 90 degrees away.  I had to shade the
> side of my eyes to limit the glare.  I could not get a good look at either
> Aquarius or Capricorn since they were nearer the moon and are drawn from
> dimmer stars than Pegasus.  Now that I've found a good spot to view Uranus
> I'll wait until the moon is further along in its path.
>     After a warm week the temperature started to drop today.  At dinner
> time I finally gave in a built a fire.  Sam is in his box next to the wood
> stove and looks quite content.  Hopefully the autumn rains will hold off
> for a week so I can get a bit more accomplished outside.  I moved quite a
> few boxes and furniture today and located two 15 or 20 amp lines.  Pat
> must have run those two before we moved to Albuquerque.  I hooked my DVM
> to them and flipped breakers to see if I could light them up.  No luck.  I
> may have to dig through the crawlspace to find where they are terminated.
> Another option is to put a battery on them and check for 12 VDC on other
> boxes to see where each stub runs.  She left far too many mysteries for me
> to solve.  I wish I could ask her for a few answers!
>     I've not been on the air this week other than on the MARS net so can
> not predict what will happen tomorrow.  I'll simply hope for the best and
> call CQ ECN and see who I get.  SpaceWeather.com lists a sunspot number of
> 38.  This may be good.  Depends on what else is going on with our
> ionosphere.  Much like the weather rock it is simpler, and more reliable,
> to simply look and see what is going on in our neighborhood.
>
>     Please join us:
> Sunday 2300z (Sunday 4pm PDT) 14050 kHz
> Monday 0200z (Sunday 7pm PDT)  7045 kHz
>
> Until tomorrow,
>        Kevin. KD5ONS
>
>
> ------------------------------
>
> Message: 13
> Date: Sun, 1 Oct 2006 08:34:04 +0200
> From: "Alessandro Santucci - I0SKK" <[hidden email]>
> Subject: R: [Elecraft] CW 45-70WPM
> To: "'RJD'" <[hidden email]>, <[hidden email]>
> Message-ID: <4513B1D600382388@> (added by
>         [hidden email])
> Content-Type: text/plain;       charset="windows-1250"
>
> Hi Dick
> I'm not sure, but did you check the K7QO website and his good CW course?
> http://www.k7qo.net/
>
> Moreover you can use RFZXP (I don't have the bookmark but you can look for
> in Google), and finally also can use the sw:
> Just Learn Morse code at:
> http://justlearnmorsecode.com/
>
> They are quite good in order to make a fast speed practice.
>
> Hope to be useful for you.
>
> 73
>
> Alex
>
> Alessandro Santucci
> I0SKK
>
> I QRP C #305
>
> INORC # 536
>
> ARI Telegraphy Club
> Honorary Member #62
>
> email: [hidden email]
>
> Web: www.eco-lavoro.com/i0skk
>
>
> -----Messaggio originale-----
> Da: [hidden email]
> [mailto:[hidden email]] Per conto di RJD
> Inviato: sabato 30 settembre 2006 19.31
> A: [hidden email]
> Oggetto: [Elecraft] CW 45-70WPM
>
> Does CW 45-70WPM Mp3 practice files exist anywhere to learn the morse code?
>
> ARRL MP3 practice files only go to 40WPM.
>
> Need to start higher to attain a 35-45 wpm base.
>
> TIA.
>
> DICK, NJ9K
>
> _______________________________________________
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> ------------------------------
>
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> End of Elecraft Digest, Vol 30, Issue 1
> ***************************************
>

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