[Johnson] KW Matchbox Question

[Evan]

When I have used my KW Matchboxes I used transmitting 300 ohm twinlead or 450 ohm window line and never grounded either terminal on the back.  Worked fine.


-----Original Message-----
From: jbrannig via Johnson <johnson at mailman.qth.net>
To: Dave’s <k2dp at charter.net>; johnson at mailman.qth.net
Sent: Thu, Nov 26, 2020 7:55 pm
Subject: Re: [Johnson] KW Matchbox Question

Balanced means balanced.Do not ground when using balanced line.JimSent from my Galaxy Tab® A
-------- Original message --------From: Dave’s <k2dp at charter.net> Date: 11/26/20  6:59 PM  (GMT-05:00) To: johnson at mailman.qth.net Subject: Re: [Johnson] KW Matchbox Question Hi all,When feeding a balanced antenna using 450 ohm window line , I a, used the balanced line feed points (ceramic feed throughs) on the back of the KW matchbox. Printed below the ceramic feed throughs are the instructions to ground one of them for use on 40 & 80 meters, unground for use on 10, 15 & 20 mtrs.  Reading the Johnson KW Matchbox manual, that statement only appears to pertain to when you are feeding a single random wire. What is the correct configuration for use with balanced line?Thanks in advance and 73,Dave, K2DPSent from my iPad> On Nov 24, 2020, at 5:00 PM, Gary H. Harmon, Jr. <gharmon at idworld.net> wrote:> > Why did Johnson put different value fuses in opposite sides of the AC line> in Rangers?  They specify a 3A in one side, a 5A in the other?> > > > 73,> > > > Gary H. Harmon, Jr. - K5JWK - HAM Radio, HEATHKIT, and ATARI Archaeologist> > 6003 Archwood> > San Antonio, TX 78239-1504> > (210) 657-1549 <home>> > (210) 884-6926 <cell and text>> > (210) 657-1549 <FAX with prior notification>> > gharmon at idworld.net> > > > "Retirement = Every day is a Saturday except Sunday"> > "Real radios glow in the dark"> > "Too many projects, not enough time"> > > > http://www.grissomroadcoc.org> > > > ______________________________________________________________> Johnson mailing list> Home: http://mailman.qth.net/mailman/listinfo/johnson> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Johnson at mailman.qth.net> > This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html______________________________________________________________Johnson mailing listHome: http://mailman.qth.net/mailman/listinfo/johnsonHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:Johnson at mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.html
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