[TenTec] [TentecJupiter538] On cleaning connectors

Bob McGraw K4TAX rmcgraw at blomand.net
Thu Jun 25 12:55:42 EDT 2020


Paul et al:

Thanks, I did not specify any details regarding "conditions" for a 
purpose.  Yes agreed, some conditions will accelerate oxidation.   In 
re-reading my post, it was not clear on the laws of chemistry and 
physics.  It should read "......has to do with the conditions......"

73

Bob, K4TAX


On 6/25/2020 11:36 AM, Paul Wojo wrote:
> Beg to differ on some of that, Bob. Moist and high temperature 
> environments will accelerate oxidation as will some environmental 
> contaminants.
>
> Best Regards.
> Paul KE2AA
>
>     On Thu, Jun 25, 2020 at 12:24, Bob McGraw - K4TAX
>     <rmcgraw at blomand.net> wrote:
>     Seems that I keep preaching this topic over and over and over. I
>     recently addressed this issue on a Scout and a Century 22.
>
>     Fact is, connectors oxidize.  It is the laws of chemistry and physics
>     and has little to do with the conditions where the radio resided,
>     past
>     or present.  When connectors oxidize the electrical path is
>     interrupted
>     by the thin layer of oxidation.
>
>     The solution is simple.   CLEAN ALL OF THE CONNECTORS.  Thus removing
>     the oxidation and the radio returns to normal operation.    Just
>     be sure
>     to exercise the male connector on the female connector a couple of
>     times
>     and then be sure the connector is correctly and fully seated before
>     moving on to the next connector.
>
>     As to the cleaning process;  a Q-Tip with contact cleaner applied,
>     {your
>     choice of the magic chemistry} and then scrubbing the male pins is
>     all
>     that is necessary.    No hocus pocus, black magic, or voodoo act
>     required.   And while you are in there.........DON'T screw with
>     anything
>     else.
>
>     73
>
>     Bob, K4TAX
>
>
>     On 6/25/2020 10:57 AM, Josh Gibbs wrote:
>     > Great advice from Bob. The Century 22 that I recently acquired
>     had the
>     > exact same symptoms: RX was good but no TX. Much of the problem
>     turned out
>     > to be due to a poor connection to the final amp board. I treated the
>     > jumpers and connectors on the boards with Deoxit and suddenly
>     had some
>     > output!
>     >
>     > Good luck. The Scout is a great looking rig - I hope to add one
>     to my small
>     > Ten-Tec collection someday =)
>     >
>     > 73,
>     >
>     > -Josh WU7H
>     >
>
>
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