[AMRadio] Deoxit

[Sarge USA RET]

To get the chemical makeup without the manufacturer printing it on its 
labels, lookup the MDS (Material Data Safety) PDF.

Regards, Robert Bethman
N0DGN

On 6/29/2019 6:25 PM, Sarge USA RET wrote:
>
>
> -------- Forwarded Message --------
> Subject: 	Re: [AMRadio] Deoxit
> Date: 	Sat, 29 Jun 2019 18:23:54 -0400
> From: 	manualman at juno.com
> To: 	amradio at mailman.qth.net
>
>
>
> Phosphor/bronze and slver-plated stuff, depending on its chemical
> composition, can tarnish to different degrees. The deoxit can cut through
> some of that stuff but it's not a permanent cure. Switch wiping can
> prolong good contact connection but lack of wiping (equipment sits idle
> for long periods) may require contacts to be cleaned again.
> Someone with a good chemical or metals background may have a better
> answer but that's what I've found over the years.
>
> But hey, what do I know, I'm listening to Iron Butterfly as I type and
> enjoying a music psychic experience.
>
> Pete, wa2cwa
> On Sat, 29 Jun 2019 16:39:30 -0500 <w5jo at brightok.net> writes:
>> Those I have been working on are Phosphor/Bronze in the RF and mixer
>> sections then silver plated in the oscillator section in some 
>> receivers. In others it is Phosphor/Bronze throughout.
>>
>> Jim
>> W5JO
>>
>> -----Original Message-----
>>
>> You didn't mention what type of plating is on the band switch contact
>> area.
>>
>> Pete, wa2cwa
>>
>> On Sat, 29 Jun 2019 15:29:29 -0500 <w5jo at brightok.net> writes:
>> > I have a question that I have been pondering for a while and maybe I
>> > need
>> > some additional evidence.
>> >
>> > Over the years Deoxit has become a staple of switch cleaning by us
>> > boatanchor aficionados. Everyone seems happy with it so much so,
>> > that
>> > nothing else is mentioned. However I have had some occurrences that
>> >
>> > required reapplication of the substance after some time, usually in
>> > months
>> > to a year. I wonder if anyone else has that happen?
>> >
>> > My observations are particularly related to band switches. With
>> > reapplication the switch goes back to normal operation but later the
>> >
>> > problems surface again. The problem is frequent enough that I have
>> > ceased
>> > using Deoxit and am trying a different chemical.
>> >
>> > So does anyone else see these problems? I am curious.
>> >
>> > Jim
>> > W5JO 
>
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