WELL! Now I've done it!

[W5EUQ]

Oops... hate it when that happens.  But don't feel too bad about doing 
that because you are not alone.
One time I did that and had to drill the cores out, then replace them 
with other ones.  It is a slow, tedious process but ....  
However, you may be able to get the slugs loose by using a lubricant.  
I'm sure there are several ways to do this.  I've used.... sparing 
amounts of WD40.  Don't want to saturate the coil form with oil.  One 
time I took vaseline and put it on the top of the slug then used a hair 
dryer to melt the vaseline and let it flow around the slug.  Then 
removed the slug and replaced it with a good one.

Anyone have any other ideas before this project becomes one of,  "once 
something is screwed up, anything done to improve it only makes it 
worse"...... I hate those too.

Bob    W5EUQ    Tampa...
Visit my new website     W5EUQ.com

Richard Arland, K7SZ wrote:
> HELP!!
>
> I was minding my own business, soldering 4-40 nuts on to the OSC coils of my new TRC-77A prior to aligning the transmitter section. The coil slugs were very, very tight, so I used a trick from Mark Francis' book, Mil Spec Radio Gear.
>
> Once I rounded out the #1 coil hole (the slug was off-center so I had to round out the hole a bit prior to soldering the nut in place) I soldered all 6 of the 4-40 nuts on the very ends of the coil slug screws using an 80 W iron (makes quick work of this and PL-259 coaxial connectors!).
>
> Then I used a small Xcelite nut driver to try turning the slugs. #5 & 6 turned just fine. I brok off #3 & 4! They twisted right off with out any warning. #2 is very tight, and I don't want to twist it off like the other two. #1 coil adjusts just fine. 
>
> So, now I am down to a three channel radio (on the transmit side, anyway) and I need some guidance. 
>
> Does anyone have the proper adjustable coils to replace the two that are broken? Is there a ready source of these coils (having a 2nd TRC-77A not withstanding!). Since I can't find the TM for the 77A (it's here somewhere I just have to find the proper pile of "stuff") I can't give you all the proper coil specs. 
>
> This is definately one of those days I should have stayed in bed. 
>
> 73 Rich K7SZ
>
>
>
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