[ARC5] 10 meter BC-454 - instability possibly found.

[Brooke Clarke]

Hi Ken:

Is there a way to shrink the female threads?  Maybe solder and re-tap?
Loctite 222 is for small diameter threads and is far from the red stud lock variety.  That's to say you can still break 
it loose with a screw driver.
I'd use a very fine wire as the applicator to you don't get way too much.

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html

Kenneth G. Gordon wrote:
> First of all, I must commend Mike's coil dope formula: it is very excellent stuff. I painted a
> layer of it on the HFO coil and it hardened to a very clear, thik coating that looks and feels
> very solid.
>
> However, that wasn't the most important discovery I made today: the slug in the oscillator coil
> is loose as a goose. It literally wobbles around on its threaded shaft. Clearly, the least
> movement of the receiver would cause the slug to move, thereby changing the frequency to
> which it is tuned.
>
> I haven't yet decided how I am going to tighten it without simply gluing it in place.
>
> It took 14 complete turns to remove it, BTW.
>
> I am thinking about attempting to embed a bit of rubber-band in the threads, or
> beeswax...maybe I can let a drop of Super Glue, or a very thin layer of it, harden on the
> threads, after which I can re-install the slug by putting a drop of Acetone inside the slug and
> screwing it on quickly.
>
> Suggestions cheerfully accepted.
>
> Ken W7EKB
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