Re: [Elecraft] Power Supply Ferrite Beads.

[Nigel]

You may care to look at what I did to quieten a Samlex SEC 1223 as kindly
posted on Tom Hammond's website.
http://www.n0ss.net/samlex_1223_rfi_mods_from_zl2df.pdf

-- 
73s,  Nigel ZL2DF

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[Elecraft] OT Burning CW onto Audio Cds

[Nigel]

This free software will burn .mp3 or .wav files directly onto a cd so as to
be playable by audio cd players.
This is of interest if you want to have some mp3 files from the ARRL site so
that you can practise 'head' reading  while in your car.The free
unregistered version has a limit of 10 tracks per cd burnt but I find that 9
ARRL mp3 files fills the disk anyway.

http://www.mp3-cd-converter.com/

http://www.mp3-cd-converter.com/cd_converter/

-- 
73s,  Nigel ZL2DF

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[Elecraft] Sidetone level

[Yves Dussault]

 
 Hi K2 friends!
I have completed the building of my K2.
Everything just works fine, except the sidetone.
I hear a very weak sidetone. 
Adjusting ST P does change the frequency of the sidetone.

But:
 Adjusting ST L from 0 to 255 has no effect on the sidetone level.
The voltage at pin 1 of U8 remains constant at 5.0 V while I turn the tuning
knob to change the setting from 0 to 255. 

Could this be an indication that U8 (MAX534) is defective or what?



Suggestions, experts?

Yves Dussault-VE2ATD
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Re: [Elecraft] when demonstrations really go well

[Jim Brown]

On Tue, 17 May 2005 14:49:13 -0700, wayne burdick wrote:

>After the talk, we tossed a 30' or so piece of wire through the window 
>of the conference room into a tree two floors below. 

I did something similar at our club's annual QRP nite last fall. K2 and 
auto tuner, 5 watts to a piece of wire taped to that nice DK9 pole, more 
wire as a counterpoise sort of laying on the ground. As many Q's on 30m at 
5 watts as I wanted, but I let the radio rest while others with inferior 
receivers could have stab at it. 

A bit later, I heard a pileup for someone sort of rare in the Carribean, 
and worked him after about a dozen calls. 

Jim Brown  K9YC


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[Elecraft] K2 vs R4C A/B CW listening test

[Ken Lotts]

FWIW, I just did an A/B test while listening to  W1AW (on 40 meters) between
my half built K2 (4890) and my (high SN) Drake R4C which was recently
upgraded and tuned by Rob Sherwood.  I toggled back and forth between the
two many many times over a period of over 30 minutes.  Using only my ears, I
compared them for signal to noise and filter ring and the K2 was noticeably
more relaxing to listen to.Very convincing to me..   If I am biased at
all, I think the R4C would have won.  BTW this was with the CW filters that
I was concerned? about at http://www.vtc.net/~ken/filters2.jpg

Ken Lotts
aa7jc

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RE: [Elecraft] Handness Survey Report

[EricJ]

It was meant to be a fun report, and it was.

Thanks for the entertainment, Fred.

Eric
KE6US 

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Fred Jensen
Sent: Tuesday, May 17, 2005 4:39 PM
To: NCCC Reflector; Elecraft Reflector
Subject: [Elecraft] Handness Survey Report

Ok folks,



Click on the "Left" quick link on the opening page.

73,

Fred K6DGW
Auburn CA CM98lw

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[fpqrp] NAQCC Sprint tomorrow night!

[Larry Makoski W2LJ]

To those of you not fortunate enough to be in Dayton or attending FDIM:

Tomorrow night is the NAQCC 80/40M Sprint; and this time we're 
dedicating the Sprint to those of us who prefer their CW a 'lil on the 
QRS side!  Please check out the details at:


http://www.arm-tek.net/~yoel/sprint_0505.html

73 es see you on the air
Larry W2LJ
NAQCC #35

-To unsubscribe, mail to [EMAIL PROTECTED], msg: unsubscribe fpqrp-l -

FW: [Elecraft] Handness Survey Report

[Dan Barker]

Absolutely Excellent report. Of course, you did split an infinitive and
neglect the QRM of the 'net.

Very enjoyable read.

Dan / WG4S (southpaw) / K2 #2456


Click on the "Left" quick link on the opening page.


Ref:

p5: "that turned out to be not massive,"

sb: that turned out not to be massive,

p6: "access to information and people anywhere in the world (with no QRM)."

Ever heard of spam? Also, "I read it on the Internet, it's GOT to be true".























Thanks.

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Re: [Elecraft] Low receiver sensitivity

[Bill Coleman]

On May 10, 2005, at 10:36 AM, [EMAIL PROTECTED] wrote:

I recently assembled and XG1 calibrator and began checking some of  
my equipment.  4 out of 5 radios that I own indicated an S9 signal,  
however, my K2 did not.  It registered an S5-S6.  A friend of mine  
who borrowed my K2 indicated the receiver seemed to be a bit weak.


Is the receiver provably weak, or is the S-meter just stingy? The K2  
receiver may be working just fine, you're S-meter may just be  
adjusted so that it is very stingy.


I had troubles with my AGC and S-meter on my K2. My notes are in the  
archives.



I eventually figured this out. I changed R1 to 30.1 k (newer K2s are  
adjustable here) and picked D1 to be a diode with a higher Vf. These  
measures helped a little, after I re-adjusted S-HI and S-LO.


The real problem was that Q12 was bad. Since I didn't have a PNA,  
I substituted a 2NA (metal TO-18 package). It's been working  
great for a couple of years now.


Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED]
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901

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Re: [Elecraft] when demonstrations really go well

[Sandy]

Reminds me of the thrill I got working New Zealand on 20 meters with
an old Ten-Tec PM-3A.  It ran about 3 watts out.  Worked them with a simple 
dipole about 12' high
suspended between the eaves of the house and a clothesline pole!

One evening on the Mississippi river levee, waiting for a ship to arrive, I 
worked a 
scad of Pacific stations at the tail end of a net on 15 meters. (Kwajalien, 
Guam, 
E. Carolines, Hawaii and American Samoa), all with a 3 watt PEP TenTec 
"Argonaut"
and a Hustler mobile whip on my truck on SSB!

Haven't been that excited in years!  Well, no maybe working DX on my K1 and 
random wire
indoors a year or so ago.  But the best thrill was the first long haul QRP with 
the ZL!
73,
Sandy W5TVW
K1 #1178
- Original Message - 
From: "wayne burdick" <[EMAIL PROTECTED]>
To: "Elecraft Reflector" ; "QRP-L" <[EMAIL PROTECTED]>
Sent: Tuesday, May 17, 2005 4:49 PM
Subject: [Elecraft] when demonstrations really go well


| Eric (WA6HHQ) and I did a talk about Elecraft at Stanford University 
| recently. Great club, and the talk went fine.
| 
| After the talk, we tossed a 30' or so piece of wire through the window 
| of the conference room into a tree two floors below. A second wire 
| about 10' long was used inside the classroom as a ground. We then tuned 
| up the antenna on 40, 30, and 20 meters to roughly 1:1 using the 
| internal tuner in a KX1. About 10 seconds after turning power on, I 
| heard a YL2 calling CQ on 20 meters. With one of the club members 
| listening on one ear bud, and me listening on the other, I called the 
| YL2 and got an answer immediately. The 339 signal report did nothing to 
| diminish the thrill of having worked such great DX with a completely 
| ad-hoc antenna and 2 watts -- on internal batteries.
| 
| It doesn't get much better than this!
| 
| (Well, OK, we designed the KX1 and could be exaggerating :)
| 
| 73,
| Wayne
| N6KR
| 
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| 
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[Elecraft] Handness Survey Report

[Fred Jensen]

Ok folks,



Click on the "Left" quick link on the opening page.

73,

Fred K6DGW
Auburn CA CM98lw

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Re: [Elecraft] K2 PLL trouble

[Bill Coleman]

On May 9, 2005, at 12:34 AM, Ken Lotts wrote:


The BFO test is also a wee bit out of range.

The upper freq is 4917.81 (OK)
The lower freq is 4915.04 (HI)


I don't know about all the PLL problems, but I do know how to deal  
with this problem.


Check that C174 and C173 are the right values - should be 82 and 220  
pf, respectively, for a Rev B K2. Some earlier models used larger  
caps. I think it depends on the type of L33 inductor used. The  
current design uses a pre-wound toroid.


If the frequency range is too high, parallel C174 and C173 by 47 and  
100 pf, respectively. You can safely add up to 56 pf and 120 pf,  
respectively.


If this doesn't help, then add a couple of pf between the joined X3  
and X4 landing to ground. I used 3 pf and this moved my lower  
frequency down about 800 Hz without really affecting the upper  
frequency.


Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED]
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901

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Re: [Elecraft] K2 operating humor

[Bill Coleman]

On Apr 27, 2005, at 11:47 PM, Roger Stein wrote:

Then it dawned on me..I was on USB listening to CW with the  
DSP on
and the autonotch engaged!!!  No wonder I couldn't hear the spot  
tone!!!


I did the same thing the other week when I was starting to fool  
around with RTTY and I wondered why my traces were looking so fat and  
sloppy.




Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED]
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901

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Re: [Elecraft] when demonstrations really go well

[moore]

> The 339 signal report did nothing to 
> diminish the thrill of having worked such great DX with a completely 
> ad-hoc antenna and 2 watts -- on internal batteries. 
> 
> It doesn't get much better than this! 

That's exactly the phrase I used recently on two occasions in which, on a whim, 
I decided to try the KX1 on 40 meters with the antenna strung randomly around 
the ceiling while operating lying in the hammock in the porch, or tossed into a 
tree while sitting on the grass outside.  In one case the station I worked was 
also using a KX1, me on 1 watt and him on 2, with a good 15 minute QSO and no 
problem copy.

I agree with you that the ad-hoc nature is a large part of the thrill.  The 
idea of trying to see how much you can do with so little is an enjoyable 
exercise in itself.  I'm not talking only about the size, amount or weight of 
the gear here, but ease of setup.  That said, if it were too easy and required 
hardly any effort, I think the fun would diminish.  There still needs to be 
some kind of challenge: finding a suitable support for the antenna, straining 
to hear the weak signal, working with a limited set of controls, etc.  It seems 
to me that the KX1 has found a great balance of all these parameters.

I've never been much into QRP before but this rig is drawing me in -- I've had 
more fun lately with it than I've had in around 16 years of radio (except maybe 
for QRQ CW).  I know that many campers and hikers take a liking to it, but for 
me it's working in the other direction: I was interested in the radio first, 
and now the KX1 is sparking a serious interest in camping/hiking.  Now that's a 
powerful little rig!

--Andrew, NV1B
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RE: [Elecraft] ethanol/isopropyl

[Ron D'Eau Claire]

Tom, N0SS wrote:

I hope there's no reason not to use it, as I've been using it for a couple 
decades now!

---

I'll confess that when I need to shoot a picture of a PC board I'll clean up
any visible rosin residue too. In those cases I use denatured alcohol on a
cotton tip swab (e.g. Q-Tip brand) and wipe each pad dry.

But that's only so there's no distracting spots in the photo. 

After all, who believes that my operating desk is as clean as shown in the
photos either! 

Ron AC7AC


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RE: [Elecraft] Single versus Dual Lever Paddles

[Ron D'Eau Claire]

Bill, W4ZV wrote:
I recently saw comments somewhere about
K7JA "slapping'" the dual lever paddle during the
Jay Leno show indicating he had learned on a
single lever.  This caused me to question whether
dual paddle (iambic) keys are used by the transmit
Champions of High Speed Telegrapy (HST) as
determined in the annual IARU HST Championships.
The simple answer is:  NO.

--

Gee, I watched the clip closely and I didn't see any undue "slapping" or any
suggestion he was squeezing in Iambic mode either.

That's an interesting observation about the lack Iambic keys in HST work,
but not really surprising. 

I used a keyer for over 20 years, and always used dual paddles in Iambic
(squeeze) mode. I used it for the same reason I use a bug, and from what
I've read it's the same reason I read that the wire and radio services
switched to bugs. Not for speed, but for comfort that allows an operator to
send with less effort for hours on end. 

The speed ability is a nice side-effect of more efficient key operation for
those working circuits where high speeds were allowed, but it is certainly
not the major reason for choosing a bug or keyer for those who do a lot of
"pounding brass" (especially all day!). 

Ron AC7AC



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Re: [Elecraft] ethanol/isopropyl

[Tom Hammond]

Hi John:

I hope there's no reason not to use it, as I've been using it for a couple 
decades now!


73,

Tom

At 04:23 PM 5/17/05, John R. Lonigro wrote:
Nobody has mentioned denatured alcohol yet.  Since it also is not 
drinkable (more than once), it does not have any liquor tax and is quite a 
bit cheaper than Everclear.  I'm wondering if there is some reason NOT to 
use this product, which I believe is mainly ethanol and methanol.


John AA0VE

[EMAIL PROTECTED] wrote:


In a message dated 5/17/05 2:25:49 PM, [EMAIL PROTECTED] writes:





I use Graves USP 190 proof grain alcohol.  You can buy it at the liquor
store.  It does a good job on the boards, and if you have any left over, it
tasts pretty good in orange juice.



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Re: [Elecraft] Re: ethanol/isopropyl

[David F. Reed]

Ditto here, for over 45 years, if you include point to point wiring...

73 de W5SV, Dave

wayne burdick wrote:



On May 17, 2005, at 2:50 PM, Ken Bessler wrote:


Now the Q: Why is it so important to clean off flux residue?



As long as the flux is nonconductive, there's no reason to clean it 
off unless you expect a surprise inspection by a roving band of PC 
board photographers.


I haven't cleaned flux off a PC board in 15 years and don't plan to. 
The electrons don't mind a little camouflage ;)


73,
Wayne
N6KR


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[Elecraft] Re: ethanol/isopropyl

[wayne burdick]

On May 17, 2005, at 2:50 PM, Ken Bessler wrote:


Now the Q: Why is it so important to clean off flux residue?


As long as the flux is nonconductive, there's no reason to clean it off 
unless you expect a surprise inspection by a roving band of PC board 
photographers.


I haven't cleaned flux off a PC board in 15 years and don't plan to. 
The electrons don't mind a little camouflage ;)


73,
Wayne
N6KR


---

http://www.elecraft.com

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Re: [Elecraft] ethanol/isopropyl

[Ken Bessler]

- Original Message - 
From: "Stuart Rohre" <[EMAIL PROTECTED]>

To: <[EMAIL PROTECTED]>; 
Sent: Tuesday, May 17, 2005 4:56 PM
Subject: Re: [Elecraft] ethanol/isopropyl


The denaturing agents in things like rubbing alcohol will leave 
undesirable

residues as may the coloring agents used now in some rubbing alcohol.

Use Everclear, or pure Ethyl alcohol, (taxable by Feds) for circuit board
cleaning.  Cut off the bristles of standard "Acid Brush" to half the 
normal
length to get stiff bristle effect for scrubbing the soldered joints. 
Acid

brushes seem to be stocked by Home Depot and Lowe's as well as wholesale
plumbing supply houses.

You want the pure stuff, without risk of residue.
-Stuart
K5KVH



I'll tell ya - then I got a question - for something as important
as MY rig, I'd spend the extra for the good stuff just to be sure.

Then, when done, I'd dump the bottle down the toilet.

Now the Q: Why is it so important to clean off flux residue?

--
Just my 2¢ worth... 73's es gd dx de Ken KGØWX
Grid EM17ip, Flying Pigs #1055, Digital On Six #350,
 Proud builder & owner of Elecraft K2 #4913





--

Checked by AVG Anti-Virus.
Version: 7.0.308 / Virus Database: 266.11.11 - Release Date: 5/16/2005

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[Elecraft] when demonstrations really go well

[wayne burdick]

Eric (WA6HHQ) and I did a talk about Elecraft at Stanford University 
recently. Great club, and the talk went fine.


After the talk, we tossed a 30' or so piece of wire through the window 
of the conference room into a tree two floors below. A second wire 
about 10' long was used inside the classroom as a ground. We then tuned 
up the antenna on 40, 30, and 20 meters to roughly 1:1 using the 
internal tuner in a KX1. About 10 seconds after turning power on, I 
heard a YL2 calling CQ on 20 meters. With one of the club members 
listening on one ear bud, and me listening on the other, I called the 
YL2 and got an answer immediately. The 339 signal report did nothing to 
diminish the thrill of having worked such great DX with a completely 
ad-hoc antenna and 2 watts -- on internal batteries.


It doesn't get much better than this!

(Well, OK, we designed the KX1 and could be exaggerating :)

73,
Wayne
N6KR

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Re: [Elecraft] ethanol/isopropyl

[Stuart Rohre]

The denaturing agents in things like rubbing alcohol will leave undesirable
residues as may the coloring agents used now in some rubbing alcohol.

Use Everclear, or pure Ethyl alcohol, (taxable by Feds) for circuit board
cleaning.  Cut off the bristles of standard "Acid Brush" to half the normal
length to get stiff bristle effect for scrubbing the soldered joints.  Acid
brushes seem to be stocked by Home Depot and Lowe's as well as wholesale
plumbing supply houses.

You want the pure stuff, without risk of residue.
-Stuart
K5KVH



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Re: [Elecraft] ethanol/isopropyl

[John R. Lonigro]

Nobody has mentioned denatured alcohol yet.  Since it also is not 
drinkable (more than once), it does not have any liquor tax and is quite 
a bit cheaper than Everclear.  I'm wondering if there is some reason NOT 
to use this product, which I believe is mainly ethanol and methanol.


John AA0VE

[EMAIL PROTECTED] wrote:


In a message dated 5/17/05 2:25:49 PM, [EMAIL PROTECTED] writes:


 


I use Graves USP 190 proof grain alcohol.  You can buy it at the liquor
store.  It does a good job on the boards, and if you have any left over, it
tasts pretty good in orange juice.

   


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Re: [Elecraft] ethanol/isopropyl

[DonaldK15]

In a message dated 5/17/05 2:25:49 PM, [EMAIL PROTECTED] writes:


> I use Graves USP 190 proof grain alcohol.  You can buy it at the liquor
> store.  It does a good job on the boards, and if you have any left over, it
> tasts pretty good in orange juice.
> 

You've just convinced me to buy and build a K2.   I'll have the cleanest 
circuit boards
around.   Hope I get all the parts installed correctly after I sample a 
little of that
cleaning fluid and orange juice.

Re: [Elecraft] Single versus Dual Lever Paddles

[David A.Belsley]

I recently saw comments somewhere about
K7JA "slapping'" the dual lever paddle during the
Jay Leno show indicating he had learned on a
single lever.


I think I have been following this thread pretty closely, and I don't 
recall anyone saying K7JA was slapping the paddle.  I think you may be 
confusing things with a recent post that I made, in which I indicated 
that Walter Winchell was slapping a bug (and producing random garbage). 
 I saw K7JA sending, and believe me, it was not slapping. It was solid 
technique, and I was amused that he had such presence of mind that he 
actually adjusted the position of the Bencher before starting.


best wishes,

dave belsley, w1euy
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[Elecraft] Left vs Right-Handed Hams -- Summary Results

[Fred Jensen]

Hmmm ...
-
The original message was received at Tue, 17 May 2005 13:16:26 -0700
(PDT)
from sbdc.ascendance.net [207.231.77.30] (may be forged)

   - The following addresses had permanent fatal errors -

(reason: 550 Error: 554 SPAM-ID: B0001 - Your message looks like
spam. To
find out why your email was rejected see http://mailman.qth.net/)
-

Well, I guess one could view the entire "handedness survey" as an
exercise in spam, no?

If anyone knows how I can actually post the results, let me know.

NCCC MEMBERS:  Our reflector accepted it.

73,

Fred K6DGW
Auburn CA CM98lw

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[Elecraft] Single versus Dual Lever Paddles

[Bill Tippett]

I recently saw comments somewhere about
K7JA "slapping'" the dual lever paddle during the
Jay Leno show indicating he had learned on a
single lever.  This caused me to question whether
dual paddle (iambic) keys are used by the transmit
Champions of High Speed Telegrapy (HST) as
determined in the annual IARU HST Championships.
The simple answer is:  NO.

73,  Bill  W4ZV

Andrea, IZ4FHT wrote:
>By the way, when I met Lazlo HA3NU (a guy who sets the keyer to 60wpm
and calls it "slow" ;-) at a big italian hamfest in Pordenone a few
weeks ago, he said he preferred single lever paddles, especially for
truly extra-high speeds.

W4ZV (in a PM to Lacy HA3NU):

Very interesting!  I noticed you were IARU Region 1
coordinator for the HST Championships at one time.  I've
heard that many operators from former East Block countries
prefer single paddle and wonder if you know if that is still
true for the top HST championship results (in Transmit)?  It
appears many former East Block competitors still dominated
the top TX results in 2004.

I also prefer a single paddle and have never seen the
benefit to switching to dual paddle.  I'm just curious
about what type of paddle the top HST TX guys use.

73, Bill  W4ZV

HA3NU's response:


Hi Bill,

It was interesting to see how fast news go around the world ie. my sentence
about speed. Hi Hi
To tell the true I said for 60 WPM (that was set on the rig)
"This is less than 60, it is approximately 50 WPM only"
60 WPM is hard to TX for me too.
You know it well, most of HST competitors prefer single paddle and vast
majority of top contesters use
home brew paddle!
The 2004 results are still OK. The next World Championship will be in June
and may be new records
will be born again. Barry W2UP will be also there, I am almost daily contact
him by Email.
Should you know other things of HST, I am redy to answer to you.

73 Lacy HA3NU


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RE: [Elecraft] ethanol/isopropyl

[W3FPR - Don Wilhelm]

Prices will vary from area to area.  Here, the grain alcohol at the liquor
store is priced less per unit volume than a similar concentration isopropyl
alcohol at the pharmacy.  The last 750 ml bottle I bought was about $12, and
I was quoted about $10 per pint for isopropyl.

73,
Don W3FPR

> -Original Message-
>
> You can get 99% isopropyl at most pharmacies .. you might need to ask
> at the counter, sometimes they keep in in back for some reason ..
>
> de John/W1RT
>
> On 5/17/05, Jeremiah McCarthy <[EMAIL PROTECTED]> wrote:
> > 190 proof ethanol (grain alcohol) does cut rosin flux very well
> and is available at the local liquor store...It is EXPENSIVE,
> about $23 for 750 ml...99% Isopropyl alcohol is about $5 a pint
> at several Google listed sources...Jensen sells it at $15 a
> gallon...You cannot drink isopropyl, so it will last longer
> around the house...
> >
>
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Re: [Elecraft] ethanol/isopropyl

[Charles Greene]

I use Graves USP 190 proof grain alcohol.  You can buy it at the liquor 
store.  It does a good job on the boards, and if you have any left over, it 
tasts pretty good in orange juice.


At 03:00 PM 5/17/2005, you wrote:
Radio Shack and Circuit Specialists sell felt-tip marker like things for 
cleaning boards.  I got one free from CS with an order, and another for 99 
cents on closeout at RS.


Leigh / WA5ZNU/PM


73,  Chas,  W1CG 


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Re: [Elecraft] ethanol/isopropyl

[Leigh L Klotz, Jr.]

Radio Shack and Circuit Specialists sell felt-tip marker like things for 
cleaning boards.  I got one free from CS with an order, and another for 
99 cents on closeout at RS.


Leigh / WA5ZNU/PM
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[Elecraft] K2 #4783 is alive

[Dave G3VGR]

I completed the alignment today and put the covers on. The whole project 
really was fun and I've ended up with a professional product. I had just 2 
problems, both on the RF board. Q23 had a broken leg, causing TX instability 
(thanks to the reflector archives for pointing me in the right direction). 
Also one leg of  C161 was unsoldered, resulting in a very deaf (but quiet 
IF) receiver indeed. It was also necessary to change L31 to 12uH as I only 
had 9.3Khz swing on the PLL Reference Oscillator.


The KPA100 option has been ordered, so look forward to building that next. 
There's a blow-by-blow account with some pretty pix on my website. 
Unfortunately, I can't test out the Mojo for a while as I'm out on the road 
until the end of June, but I know I'll be impressed.


73, Dave G3VGR
http://www.g3vgr.co.uk
FISTS #7180
AGCW #3105
RTC #335
GQRP #9891
DIG #6059

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Re: [Elecraft] ethanol/isopropyl

[John D'Ausilio]

You can get 99% isopropyl at most pharmacies .. you might need to ask
at the counter, sometimes they keep in in back for some reason ..

de John/W1RT

On 5/17/05, Jeremiah McCarthy <[EMAIL PROTECTED]> wrote:
> 190 proof ethanol (grain alcohol) does cut rosin flux very well and is 
> available at the local liquor store...It is EXPENSIVE, about $23 for 750 
> ml...99% Isopropyl alcohol is about $5 a pint at several Google listed 
> sources...Jensen sells it at $15 a gallon...You cannot drink isopropyl, so it 
> will last longer around the house...
> 
> Usual disclaimers apply...
> 
> Jerry, wa2dkg
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RE: [Elecraft] ethanol/isopropyl

[ron]

NOW he tells me!! :)

Ron
Wb1hga


Jerry writes:
 ...You cannot drink isopropyl, so it will last longer around the
house...

 

 

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[Elecraft] ethanol/isopropyl

[Jeremiah McCarthy]

190 proof ethanol (grain alcohol) does cut rosin flux very well and is 
available at the local liquor store...It is EXPENSIVE, about $23 for 750 
ml...99% Isopropyl alcohol is about $5 a pint at several Google listed 
sources...Jensen sells it at $15 a gallon...You cannot drink isopropyl, so it 
will last longer around the house...

Usual disclaimers apply...

Jerry, wa2dkg
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[Elecraft] K2 Front Panel Board Resistance Check Problems

[Zac Brown]

Hello,

I'm on page 28 of the K2 manual. On 6 of the resistance checks, I'm getting
values that are quite a bit larger than the expected values. The other checks
were all within the expected ranges. Looking for advice on what might be the 
problem(s), and how to fix.

Here are the resistance checks that failed.

Test Point, Expected Resistance, Measured Resistance
U1 pin 5, 15-40k, 145k
U1 pin 12, 9-11k, 176k
J1 pin 15, 10-60k, 153k
J1 pin 16, 25-35k, 155k
J1 pin 17, 25-35k, 155k
J1 pin 18, 15-40k, 145k


Thanks,

Zac Brown
KD5IEF
K2#4907 


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RE: [Elecraft] Can you bypass KAT2 tuner on K2?

[W3FPR - Don Wilhelm]

To bypass the KAT2, go to the menu and set either ATU CALP, ATU CALS or ATU
POUT (depending on what you want the display to read when pressing TUNE, see
the chart in the manual) - the KAT2 ANT1 and ANT2 jacks can still be used
and will be switched as normal.

If you want the ATU entirely disable, open the top cover and unplug it, then
use the lower rear panel BNC jack.

73,
Don W3FPR

> -Original Message-
>
> Is it possible to bypass the KAT2 20W automatic internal antenna
> tuner on the K2?  Can you do this by simply disabling the KAT2
> (if I remember correctly there may of an "atu off" option
> somewhere in the K2's menus) and connecting the antenna to the
> original antenna port?
>
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[Elecraft] Can you bypass KAT2 tuner on K2?

[moore]

Is it possible to bypass the KAT2 20W automatic internal antenna tuner on the 
K2?  Can you do this by simply disabling the KAT2 (if I remember correctly 
there may of an "atu off" option somewhere in the K2's menus) and connecting 
the antenna to the original antenna port?
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Re: [Elecraft] Fuel for the Morse interface fire

[Leigh L Klotz, Jr.]

I have a Danger Hiptop and can type about 35wpm on it.  I wrote a PSK 
app for it, ussing the TCP/IP interface and talks to gMFSK on Linux.  It 
supports any mode that gMFSK supports.  I also have been working on a 
native PSK implementation using the sound I/O but it may not be suitable 
for QSOs because of the size of the sound buffer (capture then 
process).  I also did a CW output routine for it, but ran into some MIDI 
problems.

73,
Leigh.
On Tue, 17 May 2005 8:11 am, Eric Ward wrote:
A Blackberry or Handspring Treo or similar has a full qwerty 
mini-keyboard designed to be run with both thumbs. (Come to think of 
it, a PSK31 rig in the same general size and format as one of these 
would be incredibly cool, and arguably feasible (factory built and SMD, 
of course).



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RE: [Elecraft] Fuel for the Morse interface fire

[Eric Ward]

A Blackberry or Handspring Treo or similar has a full qwerty 
mini-keyboard designed to be run with both thumbs. (Come to think of it, 
a PSK31 rig in the same general size and format as one of these would be 
incredibly cool, and arguably feasible (factory built and SMD, of course).


A running joke among those of us "entrepreneurs" who work for venture 
capital-backed companies is how fast your VC board members can type on 
these things.  I don't think they could seriously compete with top QRQ 
CW ops, but for sure they exceed the 30 wpm barrier.  (Arguably, they 
perform better when typing during some interpersonal interaction to 
which they are supposed to be paying attention--e.g. a company 
presentation or a Board mtg...)


See y'all in Dayton.
73
Eric
N0HHS
__

Wayne Burdick wrote:



Morse has three other ergonomic advantages you didn't mention:

1. You can send Morse with one hand (even medium-fast text messaging 
requires two hands)


 



Text messaging with my phone requires cradling the phone in one hand and
pressing the digits with the thumb of that hand. What does the other hand
need to do? 

Maybe you have a really big cell phone?   :-) 


de - N3WZ (Jim)



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Re: [Elecraft] Re: Fuel for the Morse interface fire

[DYARNES]

Something occurred to me about this "race".  The text message folks  got to 
punch their message in, which was then "printed" out on the receiving end  
right on the receiver's phone.  I'm not sure if they were also trying to  
transcribe by hand.  Seems to me the CW guys could have shown that  capability 
as 
well, and to the audience, with a code reader. That could have  been hooked up 
to 
a big screen viewable by the audience.  Might have  been a bit "risky" though, 
since code readers don't always show exactly what has  been sent, or may 
group some letters funny, if the sender isn't just about  perfect.  But, they 
could also quickly demonstrate an ability to send that  message at an even 
faster 
rate.  Oh well, the way it was done was certainly  effective, and at least we 
are all getting a big bang out of it.  I know I  did!  
 
KNOW CODE!
 
Dave W7AQK
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[Elecraft] Re: Fuel for the Morse interface fire

[ron]

It can be awkward for many people to use one thumb.
Many people find it awkward using your method. They cradle and use both
hands, (fingers) finding it easier to press. 

Maybe you have a really large hand? :)
 
Ron wb1hga


Jim, N3WZ writes:
Text messaging with my phone requires cradling the phone in one hand and
pressing the digits with the thumb of that hand. What does the other hand
need to do? 

Maybe you have a really big cell phone?  :-)

 

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[Elecraft] Re: Custom Morse Ringtones

[John J. McDonough]

Thusly spake Lloyd:

> My phone, a Treo 600, can use .midi files as
> ringtones, and I can link any tone to a specific
> caller.

There is a program called BitPim which can be used to download midi
ringtones into many of the popular phone models.

http://www.bitpim.org/

The program also has a lot of other really cool features, but it is also
relatively easy to toast your phone with it.

72/73 de WB8RCRhttp://www.qsl.net/wb8rcr
didileydadidah QRP-L #1446 Code Warriors #35


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[Elecraft] Re: Rosin removal

[Dave Sergeant]

On 17 May 2005 at 4:04, KA5N wrote:

> The easiest to get and a very excellent solvent for rosin on PCB is
> Everclear (ethanol 95%) which is available at any liquor store.  A
> pint will last a long time (unless you quench your thirst with it). 
> It has the advantage of dissolving old rosin as well as that from
> newly soldered joints.  While most parts are not damaged by it, it
> should be used by applying only to the solder joints with an acid
> brush with shorten (1/4-3/8 length) scrubbing, rinsing and wiping with
> a paper towel.  Done correctly you get shiny joints with NO rosin.
> Most of the time, except for looks, rosin from good solders does no
> harm. You can do more harm than good if your cleaning isn't done
> properly. Allen KA5N 

Readily available in the UK is Fluxclene from Electrolube, which is 
specifically designed for cleaning flux off pcbs. It would see that 
our USA cousins have not heard of it...
Perhaps from working a long time in a military environment, I always 
clean flux off boards after soldering. It makes the whole job look 
far more professional, and although flux (from NORMAL solder that is) 
does not do any harm it certainly looks awful.

One of these reflector topics which won't go away...

73 Dave G3YMC



http://www.davesergeant.com

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