[Hammarlund] Dial cord restringing

[Richard Knoppow]

----- Original Message ----- 
From: "rbethman" <rbethman at comcast.net>
To: "hammarlund List" <hammarlund at mailman.qth.net>
Sent: Tuesday, May 15, 2012 10:34 AM
Subject: [Hammarlund] Dial cord restringing


> This also was asked with the same references that I also 
> have, i.e., the
> appropriate radio manual AND Sam's or Rider's 
> documentation.
>
> It is not the "path" of the dialcord, so much as it is 
> geared to
> "technique".
>
> I've gotten a few direct responses.
>
> The theme has been the same.  "I've tried to do this on my 
> XXXXX, and
> haven't had success"  "What are the hints/tips/secrets?".
>
> I toss this out to the group.
>
> I've achieved success on several different radios.  I 
> attribute my
> success to trial, error, and patience.
>
> I know that I've replaced the springs a few times with 
> those from
> ballpoint pens.  I've also used the braided Dacron fishing 
> line, in lieu
> of purchasing dial cord from the on-line emporiums.
>
> I've also used waxed cord in one or two instances, when 
> the cord wanted
> to slide in lieu of turning the grooved wheel on the 
> tuning capacitor.
>
> Anyone care to chime in with their ideas?
>
> Bob - N0DGN

    I've used both the fishing line and regular dial cord 
off the Internet. I prefer the dial cord because its thinner 
but the non-stretch fishing line works OK.  Its possible to 
find all sorts of extension springs at most hardware stores. 
You may have to trim them for length which also means making 
a new hook end to fasten them.
    Some dials system require some body english to get the 
cord on but usually you can do well by following the path 
indicated in the instructions (when you have them).
    I am not sure about waxed cord, I would expect it to 
slip more, but one can use rosin to help where the cord 
slips.  In fact very old catalogues used to list rosin for 
just this purpose.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com