[Elecraft] K3 audio speaker jack

[Don Wilhelm]

  Werner,

Just a guess, but most devices like that have a relatively high input 
impedance - that means you should be able to connect both tip and ring 
together, bridging both channels of the audio amp in the K3.

Check the specs on the speaker - if it states that the input impedance 
is low, then just connect the tip and the shell.

Definitely, change the plug to a stereo plug no matter what else you do 
- you will stress the audio amp if you short its output.

73,
Don W3FPR

On 10/27/2010 3:36 AM, Dr. Werner Furlan wrote:
> I have a BHI noise reduction speaker, this speaker has a cable with a mono
> plug. (3.5mm, sleeve and tip) I have learned that this plug should not be
> used with the K3.
> My question: when I exchange the speaker cable with a stereo plug, should
> I leave the ring unconnceted or is it better to connect left and right
> channel (ring and tip) to the BHI speaker?
>
> 73! de Werner OE9FWV
>