[TenTec] maintenance on 238 roller?

[Jay Bromley]

Clark and gang hi,
I love DeoxIT products from Caig Laboratories.  But, I would KEEP it away
from any RF switches though.  I made this mistake on a MFJ tuner once and to
make a long story short I was very sorry.  Arches and sparks everywhere.
When they say improves conductivity they mean it!

Using DeoxIT on 30 plus year old pots, I have never had to touch them again,
ever!  They move like glass now, but I would not use them on RF switches or
on inductors.  The oxide is probably silver oxide on your roller inductor
and will not hurt the operation of your 238 one bit.

DeoxIT is the best stuff on the market for restoring old pots, bar none.
However use with caution on everything else!

Gud luck--

73 de w5jay..


> I just got a 238 tuner.  Had to do the dial string (naturally) and
> replace every pilot lamp, they were all blown.  Odd.  All working fine,
> though.  I went inside to touch up the switches with a tiny shot of
> DeOxit and noticed the roller pretty clean and shiny other than a little
> bit of tarnish.  Is there any standard maintenance anyone recommends on
> the roller?  I have shot DeOxit on some old tuner rollers that were not
> in good shape (as a last resort) but I don't want to gum this one up.
> Suggestions?
>
> The other question, I use DeOxit DN5, and I understand that most service
> departments gave it up since it is a bit caustic to plastics...but I
> only heard that as a rumor.  Is this true, and if I have shot a bunch of
> it inside my rigs, any thoughts on what to do next?
>
> Clark
> WA3JPG
>
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