home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   rec.audio.tech      Theoretical, factual, and DIY topics in      41,683 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 40,073 of 41,683   
   dave a to Greg Forschler   
   Re: Amp picking up radio   
   31 Oct 10 15:01:31   
   
   c292cd7b   
   From: blkcatREMOVETHIS@gmail.com   
      
   On 10/31/2010 1:55 PM, Greg Forschler wrote:   
   >>   
   >> Have you checked the power lead for earth continuity?   
   >>   
   >> Have you checked your mains sockets for earth?   
   >>   
   >   
   > I don't know what either of these means.   
   >   
      
   1. Does your power outlet have three holes and your power cord three   
   wires and prongs?   
      
   2. Make sure the round prong on the cord is connected to the ground on   
   the unit.  This requires a simple continuity tester or an ohm meter   
   connected between the round prong and the chassis of the unit.  The unit   
   needs to be unplugged when you conduct this test.   
      
   3. Is the round hole on the power outlet connected to earth ground?   
   This can be tested in a similar fashion, but will require you know where   
   to find a good earth ground.   
      
   4. If both of these tests are good, then your unit is well grounded and   
   this is not the problem.   
      
   5. If you are using a two wire cord or a two hole outlet, you likely   
   have a ground loop and this is causing your problem.  You MUST have good   
   grounding.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca