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961spkrhum [2007/05/29 16:22] (current)
n5na created
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 +====== Model 961 Speaker 60 Hz Hum Fix ======
 +**From the Ten-Tec Reflector May 18, 2007**
  
 +I just attempted to use the built-in speaker on the 961 for the first time and am experiencing a 60 Hz hum which is quite audible.
 +
 +I do not hear this hum when using the Omni VI's built in speaker, nor when using headphones.
 +
 +It is loud enough that it is annoying.
 +
 +Has anyone else experienced and fixed this?
 +
 +Tnx\\ 
 +73\\ 
 +Rick, NJ0IP
 +
 +----
 +**May 21, 2007**
 +
 +Thanks to those who offered suggestions.
 +
 +The winning suggestion came from Jack Burchfield, the president of Ten-Tec, who responded to my e-mail enquiry with "​remove the ground wire which runs from one side of the 961's speaker to its chassis ground"​.
 +
 +Works just fine now.  No hum at all.
 +
 +73\\ 
 +Rick

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