[Premium-Rx] Lubricants for electronics

[watkins-johnson at terryo.org]

My two preferred lubricants for electronics are Mobil 1 for places
requiring a thin lubricant that doesn't squeeze out and Phil Woods
Waterproof Grease (designed for bicycles) for places requiring a thicker
lubricant.

I started using Mobil 1after a tip from the R-390 users group.  In my
experience with multiple premium receivers it doesn't creep onto
surrounding surfaces.  I would use this on a tuning shaft any day.

I first used the Phil Woods Grease while rebuilding my second R-389 (I was
young, strong, and foolish once), which has the most leaden manual tuning
knob of any receiver I've ever owned.  It didn't work miracles but the
tuning was much better than the first one I rebuilt.

Once of the stranger lubricant tricks I ever picked up was from a guitar
amp technician.  If you have a noisy and irreplaceable potentiometer,
Lock-Ease graphite lock spray works great for filling in the noisy pits on
a degrading pot.  The trick is to use it sparingly and infrequently.  This
is a tip that can go bad in electronic circuits in a hurry, but sometimes
it's the only option.

Terry O'
http://watkins-Johnson.terryo.org
http://BlackRadios.terryo.org


> Hi Boris!
>   I would caution against using silicone spray in electronics: When I was
> in industry, it was explained to me that silicones can break down into
> lesser products, i.e. Silicon Dioxide (SiO2), or sand!  It might be
> permissible to use it on a shaft, but I would rather use something like
> Kroil, or another penetrating oil to get a stuck part moving, then
> gradually work more light oil into it to flush out rust, and afterwards
> use a drop or two of heavy synthetic oil.  Just my two cents worth...
> 73,   Tom Herman, PhD., CETma. N1BEC/7
>
>> From: ua3mcj at mail.ru
>> To: cfuller1 at gmail.com
>> Date: Fri, 24 Oct 2014 08:39:21 +0400
>> CC: Premium-Rx at mailman.qth.net
>> Subject: Re: [Premium-Rx] Collins HF-2050
>>
>>  Hello Chris,
>>
>> At first find location of bearing in main tuning shaft, spray it with
>> Silicone Spray, rotate knob back and forth some few minutes it became
>> ease to move after that.
>> Then add  few drops of synthetic oil ( oil must NOT became dry with the
>> time).
>>
>> Make some inspection, probably  few more bearings there, if so do the
>> same with them.
>>
>> Also check for rust in the shafts sleeves there, if yes, use rust
>> remover.
>> Remove dust, dirt with pressed air if compressor available. Remove all
>> old, dryed grease if used in and replace with fresh one...Then enjoy
>> with smooth tuning knob rotation...
>>
>> B.R.
>> Boris
>> UA3MCJ
>>
>>
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>
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