Ken,
 I have only seen the warning in the TenTec 
manuals for the OMNI-A/C/D, Delta, Argosy, and 
Corsair family that use the plastic enclosed 
rotary switches. I vaguely recall something about 
washing away the special lubricants that were 
originally in the switches.
 I have never shied away from using DeOxit on any 
of the connectors or controls on TenTec gear, or 
any boatanchor. I was hoping to find out what the 
TenTec service technicians or others may have 
used successfully on these switch elements.
 As a last resort, I may use DeOxit on the wafers 
and use compressed air to blow away the residual, as Gary suggested.
73 Bill N4LG
At 03:52 PM 1/21/2018, you wrote:
 I had not heard a Ten-Tec recommendation against 
DeOxit before. I use it on connectors in my Omni 
VI and Paragon. Also on potentiometers and 
switches. Never on PCB trace pushbuttons though. 
What kind of trouble can I expect from my use of 
DeOxit on my Ten-Tecs? Ken N6KB On Sun, Jan 21, 
2018 at 10:46 AM, Gary <dukeshifi@comcast.net> 
wrote: > I have used CRC non-residue cleaner on 
Ten The radios successfully for > decades with 
no adverse effects. > > Ten Tec switches are 
neither better nor worse than anyone 
elseâ??s. > > The real key is to not leave 
behind any residues or lubricants. > > There is 
reason for caution regarding the plastic wafer 
switches in some > radios but, by only using the 
lowest amount to achieve the task, they will > 
be safe too. > > If you are really concerned, 
you can use an air gun to blow the liquid out > 
of the wafer (and away from your face) as soon 
as your switch starts > working again. > > 
Gary > > Sent from my iPad > > > On Jan 21, 
2018, at 2:37 PM, Bill Cotter <n4lg@qx.net> 
wrote: > > > > Hello, > > > > I have a 580 Delta 
that has a dirty bandswitch. TenTec warns us not 
to > use DeOxit or other general purpose 
cleaner/lubricants on their switches. > Does 
anyone know what cleaner/lubricant products are 
approved or used by > TenTec? > > > > Thanks - 
Bill N4LG > > > > 
_______________________________________________ > 
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TenTec@contesting.com > > 
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> > 
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> 
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