To: rsgb_lf_group@blacksheep.org
References: <165b516335a-1ebf-5174@webjas-vad091.srv.aolmail.net>
 <d703499f-673f-4414-0361-2e9987ae3a2f@verizon.net>
 <1UQaCcOJTL.4J2b3qBPXRi@optiplex980-pc>
From: "Stan, W1LE" <stanw1le@verizon.net>
Message-ID: <db496d60-1295-e647-5ccb-cffb83b670ea@verizon.net>
Date: Sat, 8 Sep 2018 17:57:36 -0400
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101
 Thunderbird/52.9.1
MIME-Version: 1.0
In-Reply-To: <1UQaCcOJTL.4J2b3qBPXRi@optiplex980-pc>
Content-Language: en-US
Subject: Re: LF: Porcelain insulators on rope guys for a vertical antenna
Content-Type: multipart/alternative;
 boundary="------------5D8425C94C380EAD33C37137"
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org

This is a multi-part message in MIME format.
--------------5D8425C94C380EAD33C37137
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 8bit

Hello Jay,

Yes, this is for my higher power TX antenna. I will dig into my junk box 
for other glass/glazed ceramic insulators. Just got back from the New 
England ARRL hamfest in Boxboro and saw a bunch of insulators at the 
flea market. I like the idea of the delrin (non-hygroscopic nylon) 
insulators. What outer diameter (solid) rod would you suggest, as a good 
starting point ?

Possibly 3/4" or 1/2" OD ?  with holes 1" from the ends ?

Stan


On 9/8/2018 6:29 AM, jrusgrove@comcast.net wrote:
> Stan
> If you're planning on using this mast as the radiating element on MF 
> and especially LF with any appreciable power, egg insulators will be 
> problematic. The relatively small physical separation with normal 
> moisture and 'contaminents' will carbon track. I've had good luck 
> using black delrin rod ~ 6 - 10 inches in length with holes drilled in 
> each end. Countersink the holes to remove the sharp edges.
> Jay W1VD  WD2XNS  WE2XGR/2
>
>     *--*
>


--------------5D8425C94C380EAD33C37137
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 8bit

<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    <p>Hello Jay,</p>
    <p>Yes, this is for my higher power TX antenna. I will dig into my
      junk box for other glass/glazed ceramic insulators. Just got back
      from the New England ARRL hamfest in Boxboro and saw a bunch of
      insulators at the flea market. I like the idea of the delrin
      (non-hygroscopic nylon) insulators. What outer diameter (solid)
      rod would you suggest, as a good starting point ?</p>
    <p>Possibly 3/4" or 1/2" OD ?  with holes 1" from the ends ?</p>
    <p>Stan<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 9/8/2018 6:29 AM,
      <a class="moz-txt-link-abbreviated" href="mailto:jrusgrove@comcast.net">jrusgrove@comcast.net</a> wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:1UQaCcOJTL.4J2b3qBPXRi@optiplex980-pc">
      <meta http-equiv="content-type" content="text/html; charset=utf-8">
      <style type="text/css"> body { margin:0.7em; } body.OECFntDef, body.OECFntDef div { font-family:Arial,"Segoe UI",Tahoma,Verdana,Helvetica,sans-serif;font-size:10pt; }</style>
      <meta name="GENERATOR" content="MSHTML 11.00.9600.18450">
      <div>Stan</div>
      <div> </div>
      <div>If you're planning on using this mast as the radiating
        element on MF and especially LF with any appreciable power, egg
        insulators will be problematic. The relatively small physical
        separation with normal moisture and 'contaminents' will carbon
        track. I've had good luck using black delrin rod ~ 6 - 10 inches
        in length with holes drilled in each end. Countersink the holes
        to remove the sharp edges.   </div>
      <div> </div>
      <div>Jay W1VD  WD2XNS  WE2XGR/2</div>
      <div> </div>
      <div> </div>
      <blockquote style="PADDING-BOTTOM: 0px; PADDING-TOP: 0px;
        PADDING-LEFT: 0.5em; MARGIN: 0px 0px 0px 0.5em; BORDER-LEFT:
        #c7e5ff 1px solid; PADDING-RIGHT: 0px">
        <div><b>--</b><br>
        </div>
      </blockquote>
    </blockquote>
    <br>
  </body>
</html>

--------------5D8425C94C380EAD33C37137--