[Elecraft] K1 headphone jack

[Ron D'Eau Claire]

Don, if I move the body of the plug laterally the tip of the plug in contact
with the spring contact and switch moves laterally inside the jack itself
with the ferrule at the opening of the jack acting as a fulcrum. So it's
hard to understand why you think that cannot cause the failure.  

73, Ron AC7AC

-----Original Message-----
From: Don Wilhelm [mailto:w3fpr at embarqmail.com] 
Sent: Tuesday, November 24, 2015 6:15 PM
To: Ron D'Eau Claire; mbyrd22 at tampabay.rr.com; elecraft at mailman.qth.net
Subject: Re: [Elecraft] K1 headphone jack

Actually, the failure is because the lever that operates the switch at the
rear of the jack has broken.
That failure has nothing to do with lateral forces on the key jack, but is a
failure that is related more to the number of times the headphone jack has
been inserted and removed.  If the lever is not operated, it is not likely
to fail.

73,
Don W3FPR

On 11/23/2015 1:06 PM, Ron D'Eau Claire wrote:
> The problem seems to be the leverage the plug provides to allow the plug
to
> move inside the jack and damage the switch if the phones cord is tugged.
>
> My K2 has the original jack after many hours of use, but as it happens I
> have a right-angle plug so there is no long lever to apply force on the
> internal components in the jack if I tug on the cord accidentally.
>
>