[Elecraft] USB PTT causes strong Speaker Feedback in K3 -- SOLVED

[Bob KD7YZ]

Actually I thought I already replies solved, to this but I see no email came thru.
 
I had, sometime, somehow, either allowed my Rescue Kitten access to the backplane of the K3s's Two Audio-cables, Or
 
just possibly
 
OR
 
I totally fouled up maybe a month or two ago?
 
I have a nice pair of Bose desktop speakers. I noticed one shielded red/white pair of RCA's went to K3 backplane Stereo 'Spkrs" jack.
 
There was another same cable, also off the primary Bose speaker, going to, and plugged into, the backplane Line-Out-Stereo jack on the K3(s).
 
Removed that and the problem was solved.
 
I have no concept of why the cat, or I, would plug the speaker (B port) to the Line-out.




--
Best regards,
Bob KD7YZ EM88LL