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Myron WVØHPrinted on Recycled Data Original message From:
Terry Brown <n...@comcast.net> Date: 3/9/2016 11:18 PM (GMT-07:00) To:
elecraft@mailman.qth.net Subject: [Elecraft] BL-2 Balun Enclosure
I have just ordered a BL2 balun kit. I assume it is a voltage
Do a search of the Amazon.com online store, under Electronics, using the search
terms “waterproof plastic Enclosures”.
73,
Bob Nobis - N7RJN
n7...@nobis.net
> On Mar 9, 2016, at 23:18, Terry Brown wrote:
>
> I have just ordered a BL2 balun kit. I assume it is a voltage
Terry,
The BL2 is a current balun.
You will have to depend on others for an enclosure, I don't use one.
W8FGU has an enclosure, but it is not weatherproof.
73,
Don W3FPR
On 3/10/2016 1:18 AM, Terry Brown wrote:
I have just ordered a BL2 balun kit. I assume it is a voltage balun
switchable
W8FGU makes a series of enclosures for Elecraft kits. Visit his website
for details.
73
Ken - K0PP
On Mar 9, 2016 23:18, "Terry Brown" wrote:
> I have just ordered a BL2 balun kit. I assume it is a voltage balun
> switchable 1:1 to 4:1. I did not see any notation whether
http://www.jaycar.us/Enclosures-&-Panel-Hardware/Plastic-Boxes/ABS---Sealed/Dark-Grey-Enclosure-with-Mounting-Flange---171%28W%29-x-121%28D%29-x-55%28H%29mm/p/HB6125
IP65 - water resistant to direct water hose spray, dust-proof.
Just ordered one for my Sevick-inspired 6:1 TLT.
I have just ordered a BL2 balun kit. I assume it is a voltage balun
switchable 1:1 to 4:1. I did not see any notation whether it was a current
or voltage balun. One of the things I need is an enclosure for the balun.
I would be interested in what others have used for enclosures, especially
ones
Question: Is the BL-2 Balun a current or voltage Balun?
Bill, k6mgo
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It is a current balun. -Bruce, N1RX
Question: Is the BL-2 Balun a current or voltage Balun?
Bill, k6mgo
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Post:
On 10/27/2012 05:22 PM, Bill Ross wrote:
Question: Is the BL-2 Balun a current or voltage Balun?
The BL2 is a current Balun in both the 4:1 1:1 switch settings.
John KN5L
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Thanks to everyone that replied to my situation. Looks like I'll be
busy doing a lot of testing and experimenting today. I'll get back with
the results later.
Gary N2UM
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Thanks to everyone that replied to my situation. Looks like I'll be
busy doing a lot of testing and experimenting today. I'll get back with
the results later.
Gary N2UM
I hope that will include the suggestion of placing the balun between the rig
and tuner, just so you can report back on
Thanks for all the advise! I've been running tests all day to which I
have a nice Excel spreadsheet. I've run the tests on 160 thru 10 meters
using my trusty MFJ-259B (couldn't live without it). I ran AT1KM - no
balun, BL-2 1:1, BL-2 4:1 and a W2AU bead balun 1:1, all thru the
AT1KM. All
Gary,
Those two 80 foot 'counterpoises' are doing you no good at all.
run some wires off the ground and insulate the ends, cut each one to be
a 1/4 wavelength at a band of interest. If you have to run them in a
bundle, keep the ends of the shorter ones separated from the rest of the
wires by
To: elecraft@mailman.qth.net
Sent: Friday, November 20, 2009 4:24 PM
Subject: Re: [Elecraft] BL-2 Balun Heating
Thanks for all the advise! I've been running tests all day to which I
have a nice Excel spreadsheet. I've run the tests on 160 thru 10 meters
using my trusty MFJ-259B (couldn't live
I recently built a BL-2 Balun. It is connected between my Palstar AT1KM
tuner and my doublet antenna. The antenna consists of a 100' wire up
25' and fed by 95' of 600 ohm open wire feeder. I'm using the 1:1
setting on the balun. There is a 4 section of RG-213 between the balun
and a coax
Gary,
Balun heating is normally caused by attempting to feed a very high or
very low impedance.
Have you tried the 4:1 position? It may help, so do try it even though
I would believe the antenna system feedpoint impedance where the balun
is connected may be in the range of thousands of ohms
reasonably close to 50-ohms at the balun.
Paul, W9AC
- Original Message -
From: Gary Winkelman thewink...@gmail.com
To: elecraft@mailman.qth.net
Sent: Thursday, November 19, 2009 10:02 PM
Subject: [Elecraft] BL-2 Balun Heating
I recently built a BL-2 Balun. It is connected between my
At 10:02 PM 11/19/2009 -0500, you wrote:
I recently built a BL-2 Balun. It is connected between my Palstar AT1KM
tuner and my doublet antenna. The antenna consists of a 100' wire up
25' and fed by 95' of 600 ohm open wire feeder. I'm using the 1:1
setting on the balun. There is a 4 section of
PS
I believe the BL-2 is rated at 150 watts so running at 125W is already
at the limit even when it is placed in the ideal point in the circuit
... (50 ohms resistive). Place it in a point in the circuit where the
resistance varies up or down from the ideal of 50 ohms and then make
Yes, you are reaching the curie temperature of the core. At that point
it's magnetic properties change dramatically.
Of course that heat comes from RF that is becoming heat instead of being
radiated by the antenna. A bigger core isn't the answer. You'd still be
losing the same amount of power
:32 PM
Subject: Re: [Elecraft] BL-2 Balun Heating
Yes, you are reaching the curie temperature of the core. At that point
it's magnetic properties change dramatically.
Of course that heat comes from RF that is becoming heat instead of being
radiated by the antenna. A bigger core isn't
I've searched the Elecraft website for this info. I hope I didn't
miss it. {;-)
What is the core material in the two cores used in the BL-2?
73! Ken - K0PP
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