[Elecraft] Audio Amplifiers without Pin One Grounding issue for us with the K3

[Robert Nobis]

Jim,

Thank you. That is precisely why I have asked the question. What I am
trying to find out is are there really any products that do not have the
pin one problem?

73,


Bob - N7RJN

On 1/10/14, 8:51 PM, "Jim Brown" <jim at audiosystemsgroup.com> wrote:

>On 1/10/2014 6:59 PM, Robert Nobis wrote:
>> I also use my K3 to listen to SW broadcasts and am looking for an audio
>> amplifier that is immune to RFI and does not have the pin one grounding
>> issue for the input/output connectors. I prefer something in the range
>>of
>> 10 to 25-watts of power to drive my speakers. Does anyone have any
>> recommendations?
>
>I wish I had better news, but most consumer products have "the pin one
>problem." It's also common for RF to be coupled on loudspeaker wiring.
>The RF side of this can be solved with ferrite chokes on cables
>connected to vulnerable equipment.  Twisted pair loudspeaker wiring also
>helps that part of the problem.
>
>73, Jim K9YC
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