[Amps] construct ferrite "line isolator"

[Jim Brown]

On 10/26/2010 8:22 AM, Jim Thomson wrote:
> None of my audio rack gear has any Pin 1 problems.  It has to be some pretty old audio rack gear to have Pin 1 problems.

Nope. Most consumer and semi-pro audio and video  products, and 
virtually ALL ham and computer products have pin 1 problems at every 
audio input and output. The good news is that most PRO audio mfrs have 
gotten the word, and do not have pin 1 problems.

73, Jim K9YC