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?
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
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,
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
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.
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
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
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
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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Post to:
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:
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
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
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
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
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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Post to: Elecraft@mailman.qth.net
You
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
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
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
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
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
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
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
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