[Boatanchors] Dark deposits on rotary switch wafers

[K5MYJ]

I have a SX-111 that had a problem with the band switch.

I tried cleaning it with DeOxit several time without success.

For some reason a black crud built up on the rotors. I finally had to scrape 
it off with an X-Acto knife.

I have no idea what the crud was.

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
----- Original Message ----- 
From: "Kenneth Grimm" <grimm at sbc.edu>
To: "Rob Atkinson" <ranchorobbo at gmail.com>
Cc: "Boat Anchors List" <boatanchors at mailman.qth.net>; "Grant Youngman" 
<ghyoungman at gmail.com>; "HL1FB" <yonglee at yonsei.ac.kr>
Sent: Monday, August 13, 2018 7:25 AM
Subject: Re: [Boatanchors] Dark deposits on rotary switch wafers


>  "..But we're talking about radio hardware, not a tea service or
> the Stanly Cup..."
>
> I couldn't agree more!
>
> Deoxit D5 is all you need.  Please avoid destroying a perfectly good 
> switch
> by using a Dremel tool.  With a brute force treatment like that one little
> slip and.....
> Deoxit won't make it shine, but WILL keep it working if all that is wrong
> is a coating of silver oxide (which is a conductor anyway).
>
> 73,
> -- 
> Ken - K4XL
> BoatAnchor Manual Archive
> BAMA - http://bama.edebris.com
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