[R-390] Squeaky Slugs

[Barry]

Hello Jacques,

I removed all the coils but didn’t do any real cleaning.  Maybe I should.

This one was definitely a maligned slug problem.  I removed the slug from the rack, rolled it on the desk to get a better idea of where the kinks were, and got it pretty concentric with the threaded part.

I reinserted it to approximately the same depth, replaced the rack, and no more squeaking. 

Hopefully none of the rest of them are bent very much but, if so, I should be able to get them straightened out as well. 

Thanks,
Barry - N4BUQ

> On Sep 13, 2024, at 12:58 PM, Jacques Fortin <jacques.f at videotron.ca> wrote:
> 
> Hi Barry,
> 
> I do not know what cleaning steps you performed when you worked on your
> R-390 RF deck, but did you cleaned every slug and coil ?
> I remember having cleaned all the slugs DRY, because there was a lot of dust
> accumulated between the coils cores and slugs, and yes, they produced a lot
> of squeaks.
> I have removed every coil for inspection and cleaning purposes.
> See attached.
> I have dry-cleaned the inside of the coils using Q-tips, and I have also
> insured that there was not internal burrs in the coils cores by using a
> twist drill of the proper dimension, driven BY FINGERS to insure that the
> internal diameter was constant up to the very bottom.
> No more squeaks after reassembly.
> Removing all the coils helped a lot for the cleaning of the deck top, also.
> 
> 73, Jacques, VE2JFE in Montreal
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Tuning Slug Colors.jpg
Type: image/jpeg
Size: 99201 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/r-390/attachments/20240913/abc28caa/attachment.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: IMG_2407.JPG
Type: image/jpeg
Size: 142235 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/r-390/attachments/20240913/abc28caa/attachment.jpe>