RE: [Elecraft] Mouser Part # Needed

[Tom Hammond]

Hi Bryan:

At 09:04 PM 8/8/04, Brian Wruble wrote:

I wonder if one day the folks at Elecraft might publish a list of Mouser
(or other supplier) catalog parts numbers for all the parts in the 
Elecraft lineup of kits.  This would probably reduce the burden they face 
supplying replacement parts to the Elecraft buffs.  Mouser provides 
extremely rapid service, even overnight if you're willing to pay for 
it.  Just a thought...


My only(!) problem with Mouser is that they now ship EVERYTHING in a box 
which costs no less than $6.50 to ship (UPS).


They used to ship small parts on padded envelopes for a couple bucks, but 
now nothing goes out unless it's boxed.


I do, however, like the fact that no matter how small your order, there's 
never a handling fee and only ACTUAL shipping is charged. There IS a $1 
'handling' charge if you ask them to ship via USPS because someone must 
hand-carry the box (again) to the P.O.


They ARE fast and generally accurate in their parts picking.

73,

Tom HammondN0SS


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[Elecraft] Saturday's CW NAQP Contest

[Art-W6KY]

North American QSO Party
 
This is (was) a great contest for QRP'ers because all the top
USA contesters are on and they want to exceed 800-900
QSO's in 10 hours. So, they 'hear' very well and so do their
super stations. Hearing QRP to them is like hearing
Afghanistan. No problem!!!...
 
The SSB side of this contest (for the K2
crowd) is on Aug 21 starting @ 1800Z. 
See wwwcontestingcom  for details...
 
I was only on for 5 1/2 hours and on my K1-4 with 15,20 and
40 meters managed to work 34 states, 3 VE Provences 
including PEI, European Russia and Brazil. 167 QSO's.
And thats with incredibly lousy condx. 
Also, that was battery power and the antenna was an 
Outbacker Perth on a tripod in the back yard.
 
The NAQP CW and SSB is twice per year. Summer and 
winter. 100 watts max, with a QRP catagory..Allowed 10 hours 
to operate. Winter, QRP should work 'all' 50 states easily
C U in the SSB in 2 weeks.  I'll be QRO.
73, Art  W6KY   K1-2  K1-4
 
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Re: [Elecraft] Mouser Part # Needed

[Kevin Rock]

Very good idea.  I use Mouser for my robotic projects and they are quite 
quick about things.  Good prices too.

   Kevin.   KD5ONS


On Sun, 8 Aug 2004 22:04:31 -0400, Brian Wruble <[EMAIL PROTECTED]> 
wrote:



 I wonder if one day the folks at Elecraft might publish a list of Mouser
(or other supplier) catalog parts numbers for all the parts in the 
Elecraft
lineup of kits.  This would probably reduce the burden they face 
supplying

replacement parts to the Elecraft buffs.  Mouser provides extremely rapid
service, even overnight if you're willing to pay for it.  Just a 
thought...

de Brian W3BW

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[Elecraft] Elecraft CW Net Report Aug 9, 2004

[Kevin Rock]

Another great net was held at 0200z on 7045 kHz.  Thanks Tom for holding 
down the middle.  Massachusetts, Oregon, California, Oklahoma, South 
Carolina, North Dakota, Texas, Indiana, Colorado, Missouri, quite a haul.


Relays were bouncing hot and heavy across the country and one call for a 
contact.  Didn't quite pull that one off but it was a good try.  Please 
remember QTCs (messages) are available if you wish a contact with 
someone.


I had a lot of fun this evening through the normal 40 meter QRM.

   On to the list:
KC0OSB - Sidney - CO - non Elecraft rig
N0SS - Tom - MO - K2 - 008
AA4NN - Joe - SC - K2 - 3751
NE5DL - Dave - TX - K2 - 2887
KL7V/5 - Sam - OK - K2 - 3158
W0CZ - Ken - ND - K2 - 1031
K1GXT - George - MA - K2 - 1632
N9IV - Russ - IN - KX1 - 742
W6KY - Art - CA - K1 - 141
N7NLU - Karl - OR - K2 - 4227

Please join us if you haven't tried ECN.  We are an odd group but we have 
fun :)  Non-Elecraft rigs are acceptable but expect to get hooked on the 
Elecraft sound if you have ever worked one!  Then once you've used one you 
will never go back to the lesser rigs.


As always the errors are mine.

   Speaking of which errata from ECN/1 this evening:
K5VJZ - Tom - LA - K2 - 4279
KB5ELV - Buddy - PA - K2 - 3491
We aim to please so send me error reports when necessary.

73,
Kevin.  KD5ONS  (Net Control Operator 5th Class)

204 operators have checked into the Elecraft CW Net for a total of 730 
QNIs.

   Thanks Folks!!!

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[Elecraft] 40m ECN

[Geoffrey Mackenzie-Kennedy]

Hi Tom,

Thought you might like to know that you are RST 459 to RST 259 through a
VERY loud LU SSB station, and through ER4DX a little bit up. The latter has
a lot of hardware in the sky pointing at me at this time, + vy QRO. Am
listening to you on my homebrew Rx - oh you have just gone - because K2 is
having a new phone jack put in. Now you are back !! This on 7045ish.

Must go to bed !! But I am hearing some of the other guys quite well  -  S2
to  S4 region.

73Geoff   GM4ESD

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RE: [Elecraft] Mouser Part # Needed

[Brian Wruble]

 I wonder if one day the folks at Elecraft might publish a list of Mouser
(or other supplier) catalog parts numbers for all the parts in the Elecraft
lineup of kits.  This would probably reduce the burden they face supplying
replacement parts to the Elecraft buffs.  Mouser provides extremely rapid
service, even overnight if you're willing to pay for it.  Just a thought...
de Brian W3BW

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Carl J. Denbow
Sent: Sunday, August 08, 2004 8:49 PM
To: [EMAIL PROTECTED]
Cc: Elecraft Discussion List
Subject: [Elecraft] Mouser Part # Needed

Does anyone know the Mouser part # for K2 Part # E500025T, which is a 1.5
ohm, 1/2 watt resistor.  Thanks for your help.

73,

Carl
N8VZ

-- 
Carl J. Denbow, [EMAIL PROTECTED] on 8/8/2004

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Re: [Elecraft] Elecraft CW Net Report for Aug 8, 2004

[Buddy Brannan]

On Sun, Aug 08, 2004 at 06:25:27PM -0700, Kevin Rock wrote:
> KD5ELV - KD5JDW - Buddy - TX - K2 - 3491

Oops! I dunno who KD5JDW is, but. ... I'm in PA, not TX. (I used to
live in TX, though!) Hmm. I might've r'membered my serial number
wrong, lemme see what my post says when I first got this
beastie. ...ah...yep, sure 'nuff says 3491, so unless someone read me
the serial number wrong and 3491 actually belongs to KD5JDW and I have
some other serial number, well, I dunno...but I checked in, and can't
say whether KD5JDW did or not :) 

And it's KB5ELV ... even if you couldn't hear me (Kevin, you were like
an S3 here, and couldn't hear much of you at all!) 

Also have KX1 #364, but didn't check in with it.

72,
-- 
Buddy Brannan, KB5ELV

Help us bring our child home! Visit http://ouradoption.brannan.name to 
find out how.
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[Elecraft] Mouser Part # Needed

[Carl J. Denbow]

Does anyone know the Mouser part # for K2 Part # E500025T, which is a 1.5 ohm, 
1/2 watt resistor.  Thanks for your help.

73,

Carl
N8VZ

-- 
Carl J. Denbow, [EMAIL PROTECTED] on 8/8/2004

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[Elecraft] Elecraft CW Net Report for Aug 8, 2004

[Kevin Rock]

Fine signals and signal reports followed the net across the continent this 
evening.  Bill checked a bit early as I was claiming a frequency.  Very 
strong signal.  He was followed by Gary in Nova Scotia who decided it was 
time for my 25 wpm test :)  Nice fist Gary!  Then we worked West with Ken 
and then Tom.


Thanks Bill and Tom for relaying so many stations in from across the 
country.


   The list:
K1EV - Bill - CT - K2 - 2152
VE1RGB - Gary - NS - K2 - 2519
W0CZ - Ken - ND - K2 - 1031
N0SS - Tom - MO - K2 - 008
KD5ELV - KD5JDW - Buddy - TX - K2 - 3491
NE5DL - Dave - TX - K2 - 2887
AA4NN - Joe - SC - K2 - 3751
K5VJZ - Tom - LA - K2 - 2279
K8ZT - Anthony - OH - K2 - 0652
W0QQS - Bruce - MN - K2 - 3646
KB0FB - Carl - IA - non Elecraft (but soon :)
WA1ZCB - Ed - MA - K1 - 0888

As always any mistakes in this list are mine.  Please correct me and I 
will post the errata as it arrives.


This keeps getting more fun each week.  It really helps when the band is 
cooperative.  I wonder what it will be like in four years when the cycles 
comes around again?


Thank you all for your support.
   73,  Kevin.   KD5ONS  (Net Control Operator 5th Class)
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Re: [Elecraft] More AOL Woes (Everyone Please Read)]

[G3VVT]

The spam button in question is on the later AOL 9.0 and is marked "Report  
Spam". Unfortunately as reported it is adjacent to the "Delete" button.
 
The amount of spam arriving in my mailbox is down to a few e-mails per day  
plus another small percentage goes direct to a spam folder. The action of  
designating a message as "Report Spam" has the effect of sending it to the spam 
 
folder. Even at that point it can be restored back to the mailbox by 
designating  as "this is not spam" which restores it for reading. With this in 
mind the 
only  point that it could be reported to AOL is when the spam designated 
messages are  deleted from the spam folder which I do every few days. In other 
words it would  possibly take two separate actions to make the mud stick.
 
Looks like another try is needed with AOL to resolve the  matter with them as 
there is little the list can do to protect itself from the  occasional moron 
with a loaded PC and a mouse.
 
Bob, G3VVT
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[Elecraft] K2 LCD Errata

[Steve Harpole, DDS.]

I am at the point of mounting the diffuser and the LCD and have read carefully 
the ERRATA REV. E-6 Nov. 14 , 2003 and understand that the front protective 
film is to be removed at a later step.  My question is with the back of the LCD 
, which appears to all white on mine.  I not sure where the gray lines come in 
to this , but I'm not sure whether to remove this white looking covering or to 
leave it.  This is hardly a faintly visible yellow or gray diagonal line 
covering as indicated on the ERRATA.  Thanks for anyones help.

Steve
KQ4UB
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[Elecraft] More AOL Woes (Everyone Please Read)]

[Eric Swartz WA6HHQ - Elecraft]

Elecraft list members, please see the message below
.
73, Eric  WA6HHQ
Elecraft list moderator

 Original Message 
Subject:[QSL-Net] More AOL Woes (Everyone Please Read)
Date:   Sun, 08 Aug 2004 12:23:39 -0400
From:   Tim <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]



Over the last year or so our system has been periodically blocked from sending 
mail into the AOL system.  A month ago, I finally made arrangements with them 
to be white listed and put an end to this once and for all.  To be white listed 
by them I had to agree to receive any and all complaints logged by their users 
about mail being sent from our system (we don't send spam, no problem).

While this seemed easy, I found that AOL provides their users a button on their interface that says 
something to the effect that "this message is spam", and when they highlight a message 
and push it, we get a "complaint" logged against us and mailed to us.  No one at AOL 
reads this stuff, but they keep track of them and after we reach a certain percentage of the mail 
we send vs how many complaints we get, they block our entire system.  I've also found that the spam 
button is next to the delete button, and a clueless user MIGHT use it to delete messages.  Here in 
lies the problem.

I am getting plenty of these "complaints" and since AOL does not tell me who is 
complaining (apparently a privacy issue), it's near impossible to find out who they are 
and remove them from the system.

So, I'm asking all list owners to post a message to all of your lists reminding AOL 
people not to use the "spam" button as a delete button and if they are 
subscribed to your list and don't want to be, help them get off the list so we don't get 
blacklisted by AOL.

Thanks for your help.  If you have any questions about this, let me know.

Tim


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Re: [Elecraft] 1N5711 diodes in directional coupler

[Jack Brindle]

I agree with Lyle's discussion on this. The reason for using 1N5711s is 
to get low power accuracy. If you are running high power only, then you 
probably could get by with 1N4148s in the directional coupler, 
sacrificing low power operation.


If you really want to replace them today, you could probably get away 
with using the 1N4148s temporarily, replacing them with real 1N5711s 
when you get them. 1N5711s are relatively easy to get (here in Silicon 
Valley, at least), obtainable from Mouser, DigiKey or even Scott at 
Elecraft...


The original Breune bridge circuits favored by many (including DeMaw) 
used germanium 1N34 diodes because of their low forward voltage drop. 
They are no longer manufactured, and hard to obtain. If you have some 
in your junk box, they might be a better selection for temporary (and 
maybe longer) use.


On Aug 8, 2004, at 8:14 AM, Indy wrote:

These are used in the directional coupler of the K2, KPA, and KAT-100. 
 I have lost these to ESD more than once.  Several questions;


Gary says that 1N5711's give more accurate readings than lessor diodes 
such as the 1N4148... question; how much more accurate, and how 
critical is this accuracy?  Would the 1N4148 be more, less, or the 
same susceptability to ESD?


I don't have any 1n5711's in my stock, but I do have some very fine 
PIN diodes, labeled, MA 47 266.  Are these acceptable substitutes for 
1N5711's?  Would they be more or less accurate in the directional 
coupler?  Would they be more or less susceptable to ESD damage?


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RE: [Elecraft] K-2 Control Board Resistance Checks Fail

[Robert McGwier]

Another clue that this is happening  (charging capacitive loads, etc.) is
that
the reading will be sliding, drifting while you are watching it.  If you see
this,
reverse the leads.

Bob
N4HY


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf
Of Brian Wruble
Sent: Sunday, August 08, 2004 6:42 PM
To: [EMAIL PROTECTED]
Cc: 'Elecraft Discussion List'
Subject: RE: [Elecraft] K-2 Control Board Resistance Checks Fail


Thanks for the tip.  That worked.  One reads infinite, and the other 1.1meg
when I reverse the leads.

Nothing beats this reflector for nearly instant (and accurate) help and
info.

73, Brian


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[Elecraft] list To address glitched again

[Bud Rogers]

I am receiving list messages addressed to me and CC'ed to the list.  I 
think it did this once before a few weeks ago.

-- 
Bud Rogers  <[EMAIL PROTECTED]>
KD5SZ   EM05vb  K2 #4115
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Re: [Elecraft] 2.3kHz KSB2 feedback

[John, KI6WX]

The new standard version of the KSB2 filter is the same as my 2.2 kHz
design.  Elecraft measures the bandwidth to the 6 dB points, so they quote
the bandwidth as 2.3 kHz.  If you want to use my 2.5 kHz bandwidth design,
you now only have to change 4 capacitor values.
-John
 KI6WX

- Original Message - 
From: "Don Wilhelm" <[EMAIL PROTECTED]>


> Folks,
>
> I didn't know that the 2.2 (or 2.3) kHz SSB filter had become the
> 'standard', but it does get my vote.  I have long advocated the KI6WX 2.2
> kHz filter bandwidth as my choice for a great compromise between 'punch'
for
> QRP operation and good SSB fidelity.  It does offer a flatter passband
than
> the original 2.0 kHz SSB filter.  To my mind, the 2.5 kHz bandwidth is a
bit
> too wide, but many folks favor it for the increase in fidelity.
>
> I do recall there was a time when the Collins 1.8 kHz  mechanical filter
was
> considered the ultimate for communications effectiveness - at least in the
> receive part of things - my how times and values have changed!!!
>
> 73,
> Don W3FPR
>
> - Original Message - 
>
> > I recently built a KSB2 with the now standard 2.3Khz filter
configuration.
> I
> > have been recieving compliments on the TX audio quality. Some have said
> the
> > SSB audio is the best they have heard from a K2. The filter sweeps on
> > Sectrogram show less ripple and more symmetry then my previous 2.5kHz
> KSB2.
> > John K5XTX
> >


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RE: [Elecraft] K-2 Control Board Resistance Checks Fail

[Brian Wruble]

Thanks for the tip.  That worked.  One reads infinite, and the other 1.1meg
when I reverse the leads.
 
Nothing beats this reflector for nearly instant (and accurate) help and
info.
 
73, Brian

  _  

From: Don Brown [mailto:[EMAIL PROTECTED] 
Sent: Sunday, August 08, 2004 1:38 PM
To: Brian Wruble
Cc: Elecraft Discussion List
Subject: Re: [Elecraft] K-2 Control Board Resistance Checks Fail


Hi 
 
Try reversing the ohmmeter leads or changing ranges and see if the readings
look better. If not I wouldn't worry about it. You are mainly looking for
gross errors like very low readings or shorts. Some DVM ohms ranges will
turn on semiconductors in the circuits and that will give the effect of a
lower than expected reading. Changing ranges or reversing the leads may keep
the semis from conducting.
 
Don Brown
KD5NDB

- Original Message - 
From: Brian   Wruble 
To: [EMAIL PROTECTED] 
Cc: Elecraft Discussion List   
Sent: Sunday, August 08, 2004 1:07 PM
Subject: [Elecraft] K-2 Control Board Resistance Checks Fail

Hi all:

I am assembling K-2 S/N 4397.  I have just completed the Control Board.  Two
of the resistance checks fail.  The resistance between the collectors of
both Q1 and Q2 to ground measure 454 K each.  They are supposed to show
resistance >1meg to ground.  I have checked resistor network RP1.  It is
installed correctly.  On RP1, the resistance between 1&2, 3&4, 5&6, 7&8 and
9&10 are all 3.9K.  Resistance checks between 2&3, 4&5, 6&7 are all under 1
ohm.  Resistance between 8&9 is about 1.5k.  That strikes me as an anomoly,
but I'm not sure.

Can anyone tell me whether this looks good, or suggest where the problem
might be?

Tnx.  73 de Brian W3BW


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Re: [Elecraft] K-2 Control Board Resistance Checks Fail

[Don Brown]

Hi 

Try reversing the ohmmeter leads or changing ranges and see if the readings 
look better. If not I wouldn't worry about it. You are mainly looking for gross 
errors like very low readings or shorts. Some DVM ohms ranges will turn on 
semiconductors in the circuits and that will give the effect of a lower than 
expected reading. Changing ranges or reversing the leads may keep the semis 
from conducting.

Don Brown
KD5NDB
  - Original Message - 
  From: Brian Wruble 
  To: [EMAIL PROTECTED] 
  Cc: Elecraft Discussion List 
  Sent: Sunday, August 08, 2004 1:07 PM
  Subject: [Elecraft] K-2 Control Board Resistance Checks Fail


  Hi all:

  I am assembling K-2 S/N 4397.  I have just completed the Control Board.  Two
  of the resistance checks fail.  The resistance between the collectors of
  both Q1 and Q2 to ground measure 454 K each.  They are supposed to show
  resistance >1meg to ground.  I have checked resistor network RP1.  It is
  installed correctly.  On RP1, the resistance between 1&2, 3&4, 5&6, 7&8 and
  9&10 are all 3.9K.  Resistance checks between 2&3, 4&5, 6&7 are all under 1
  ohm.  Resistance between 8&9 is about 1.5k.  That strikes me as an anomoly,
  but I'm not sure.

  Can anyone tell me whether this looks good, or suggest where the problem
  might be?

  Tnx.  73 de Brian W3BW


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[Elecraft] K-2 Control Board Resistance Checks Fail

[Brian Wruble]

Hi all:

I am assembling K-2 S/N 4397.  I have just completed the Control Board.  Two
of the resistance checks fail.  The resistance between the collectors of
both Q1 and Q2 to ground measure 454 K each.  They are supposed to show
resistance >1meg to ground.  I have checked resistor network RP1.  It is
installed correctly.  On RP1, the resistance between 1&2, 3&4, 5&6, 7&8 and
9&10 are all 3.9K.  Resistance checks between 2&3, 4&5, 6&7 are all under 1
ohm.  Resistance between 8&9 is about 1.5k.  That strikes me as an anomoly,
but I'm not sure.

Can anyone tell me whether this looks good, or suggest where the problem
might be?

Tnx.  73 de Brian W3BW


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RE: [Elecraft] 1N5711 diodes in directional coupler

[Lyle Johnson]

Hello Fred! 

> Gary says that 1N5711's give more accurate readings than 
> lessor diodes such as the 1N4148... question; how much more 
> accurate, and how critical is this accuracy?  Would the 
> 1N4148 be more, less, or the same susceptability to ESD?

The 1N5711 is a Shottky barrier diode; the 1N4148 a normal silicon diode.
The improved accuracy is gained by substantially reduced forward voltage
drop, about 0.2 to 0.3V for the 1N5711 vs. about 0.6 to 0.7V for the 1N4148.
The result of substituting (and after "calibration") would be to make low
power readings too low, which in practice means overly optimistic SWR
readings.

> I don't have any 1n5711's in my stock, but I do have some 
> very fine PIN diodes, labeled, MA 47 266.  Are these 
> acceptable substitutes for 1N5711's?  Would they be more or 
> less accurate in the directional coupler?  Would they be more 
> or less susceptable to ESD damage?

A PIN diode won't work in a directional coupler.  For a coupler you need
rectification of RF, the very feature that a PIN diode is designed to not
possess.

72,

Lyle KK7P


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[Elecraft] KX1 PC Board Size

[Cfzepp]

Thanks to Tom  Hammond I now have the measurements of the RF boards used in 
the K1 and the K2.  I still need the measurements for the KX1 RF Board.



Thanks, Don / WA9TGT 

WA9TGT / Donnie Garrett / Muncie, IN
ARCI #6447, ARS #1717, AmQRP, ECI-QRP #001
K2 #4003, K2 #3186, K1 #1806, K1 #0416, SW-30+
LDG Z-11 Auto Tuner, 102' CF Zepp fed with 300 Ohm Line
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[Elecraft] PC Board Sizes

[Cfzepp]

Does anyone have the dimensions of the main PC board used in the K1, K2 and 
or the KX1?



Don / WA9TGT

WA9TGT / Donnie Garrett / Muncie, IN
ARCI #6447, ARS #1717, AmQRP, ECI-QRP #001
K2 #4003, K2 #3186, K1 #1806, K1 #0416, SW-30+
LDG Z-11 Auto Tuner, 102' CF Zepp fed with 300 Ohm Line
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[Elecraft] 1N5711 diodes in directional coupler

[Indy]

These are used in the directional coupler of the K2, KPA, and KAT-100.  I have 
lost these to ESD more than once.  Several questions;

Gary says that 1N5711's give more accurate readings than lessor diodes such as 
the 1N4148... question; how much more accurate, and how critical is this 
accuracy?  Would the 1N4148 be more, less, or the same susceptability to ESD?

I don't have any 1n5711's in my stock, but I do have some very fine PIN diodes, 
labeled, MA 47 266.  Are these acceptable substitutes for 1N5711's?  Would they 
be more or less accurate in the directional coupler?  Would they be more or 
less susceptable to ESD damage?

Thank you!

Please "reply all" as I only get the digest and won't see your reply until 
tomorrow unless also sent to me directly!!!  If the PIN's are acceptable 
substitutes would like to install them today.

73,

Fred - kt5x
K2 # 700
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