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Re: KPA 500

Posted by Ed Pflueger on Apr 10, 2020; 8:36pm
URL: http://elecraft.85.s1.nabble.com/KPA-500-tp7659606p7659633.html

Well I was told by an unreliable source that the military had to have their
Amphenol's manufactured in the USA but were sent to Mexico for packaging.
Whether that's true or not I cannot confirm.  All I know is the ones I buy
are stamped in black lettering saying "Amphenol 83-1sp and below that  is
74868 PL259 49190" and they can run around 4 bucks apiece depending on when
and where I get them.

Ed... AB4IQ

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Jim Brown
Sent: Friday, April 10, 2020 11:27 AM
To: [hidden email]
Subject: Re: [Elecraft] KPA 500

On 4/10/2020 8:45 AM, Irwin Darack wrote:
> In my experience, coax connectors, barrel connectors, etc. are always
> fail points when there is a sudden increase in SWR as power is
> increased. They oxidize over time and sometimes just reconnecting or
> replacing is the first step before taking the amp apart.

If this is happening, I'd suspect 1) the connectors have gotten wet or
2) the are JUNK connectors. If they aren't labeled "Amphenol," they're JUNK.

73, Jim K9YC
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