SP3 A/B Switch Problem

[Ferris Jennings]

My SP3 A/B switch has an issue. I use the supplied speaker cable from my K3S
to the speaker A jack. I listen with the switch in the A position, but
frequently push it in to the B position as a convenient mute. Switching back
to A to listen, the sound is somewhat muted scratchy; cutting in and out as
I wiggled the switch. I push the switch in and out a few times, and it
returns to normal. I've switched the cable to the B port, but it's the same
issue.

 

I removed the side panel, thinking I could shoot a bit of DeoxIT into the
switch, but it appears that the switch is sealed, so I canned that idea.

 

Any suggestions on an easy fix or should I order up a new switch from
Elecraft and replace it?

 

Thanks in advance

Ferris Jennings NB6T -

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[IK4EWX]

 I had the same problem about one years ago. I have two SP3 loudspeakers, on
on each receiver or both speakers, ore one receiver with the K3S audio
effects that use both loudspeakers.
The switch scratched when changing channel and it attenuated the audio
signals.
The italian service obtained from Elecraft USA the switch with the connected
cable and we had to change it.
The real problem seemed a part failure, but we had changed it after only
little more than two years of use.
I would like mil parts and radio with mil parts, but a Rhode Schwartz or a
Cubic cost too much...
Ian IK4EWX





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