[ICOM] Cleaning up faceplate knobs

[AI4WM]

Correction to my ultrasonic cleaning.... I do dilute the dish detergent to
only a few drops to a quart of water.



On Sat, May 28, 2011 at 10:07 AM, AI4WM <de.ai4wm at gmail.com> wrote:

> John,
> I have 2 methods.  I soak the knobs in MeanGreen or Supe88 cleaner
> overnight.  Super88 seems best. Advance Auto sells it.  Sometimes these
> cleaners remove the index lines or any other text.
> The second method is ultrasonic cleaning.  I found Palmolive dishwashing
> detergent (regular not scented or concentrated) works the best while not
> damaging any silk screening or other finishes.  The time in the bath depends
> on the amount of gunk.  I rinse them in very hot water and let them sit or
> blow them off with air so the retaining springs or any other insert does not
> rust or corrode. If it is a knob with a set screw I remove the set screw(s)
> first.  Sometimes the small spring inserts in those kind of knobs can be
> safely removed before the bath to eliminate any possibility of rust.
>
> Harbor Freight has cheap ultrasonic cleaners that should work for knobs.  I
> have a used commercial one from ePay so I can also do circuit boardds.
>
>
>
>
> On Thu, May 26, 2011 at 3:40 PM, John Geiger <aa5jg at fidmail.com> wrote:
>
>> I have an Icom 706 original I picked up a couple of months ago. Yesterday
>> while taking it mobile I realized how dirty the knobs are on it.  Usually
>> it
>> sits in the semi-dark shack and I don't notice such things.  There is some
>> sort of hardened gunk in the grooves on the volume and RIT knobs. Not the
>> end of the world but would like to clean it up, if possible.  What is the
>> best cleaner to use on plastic knobs such as this?'
>>
>> 73s John AA5JG
>> ----
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>
>
>
> --
> 73,
> Bill
> AI4WM
>



-- 
73,
Bill
AI4WM